JP2012524266A - Fission reactor with removal of volatile fission products. - Google Patents

Abstract

  A fission reactor fuel assembly and system configured to control the process of removing volatile fission products and heat released by deflagration waves in a traveling wave fission reactor, and method thereof. The fuel assembly includes a containment configured to contain a porous nuclear fuel body having volatile fission products. The fluid control subassembly is connected to the containment and is configured to control the process of removing at least a portion of the volatile fission products from the porous nuclear fuel body. Further, the fluid control subassembly allows the heat removal fluid to circulate through the porous nuclear fuel body to remove heat generated by the nuclear fuel body.

Description

Detailed Description of the Invention

[Cross-reference of related applications]
This application relates to and claims the benefit of the earliest effective filing date based on the applications listed below (“Related Applications”). For example, this application may claim the earliest effective priority date other than the provisional patent application, or any provisional patent application, any parent application of the related application, its parent application, and its parent application, etc. Claims a benefit under 35 USC §119 (e). The entire contents of the related application, and any parent application of the related application, its parent application, and also its parent application, etc., are hereby incorporated by reference to such content to the extent that they do not conflict with this specification. .

[Related applications]
Application for special legal requirements the USPTO, "A NUCLEAR FISSION REACTOR FUEL ASSEMBLY AND SYSTEM CONFIGURED FOR CONTROLLED REMOVAL OF A VOLATILE FISSION PRODUCT AND HEAT RELEASED BY A BURN WAVE IN A TRAVELING WAVE NUCLEAR FISSION REACTOR AND METHOD FOR SAME ( US Pat. No. 5,849,058 entitled "A Fission Reactor Fuel Assembly and System, and Method That Is Constructed to Control the Removal of Volatile Fission Products and Heat Released by Deflagration Waves in Traveling Wave Fission Reactors" Partial continuation of application number 12 / 386,524 (inventor: Ch) John Rogers Gillland; Roderick A. Hyde; Muriel Y. Ishikawa; David G. McAles; L. Wood, Jr .; and George B. Zimmerman, filed Apr. 16, 2009, currently co-pending), or currently co-pending applications, will benefit from this filing date It is an application.

  The US Patent and Trademark Office (USPTO) provides notice regarding the need for a patent applicant to refer to a serial number in the USPTO computer program and indicate whether the application is ongoing or partly ongoing. Announced. This is because Stephen G., entitled “Profit of the Prior Application”. Notification by Kunin (USPTO official gazette on March 18, 2003), http: // www. uspto. gov / web / offices / com / sol / og / 2003 / week11 / patbene. htm. It can be browsed at. The applicant organization of the present application (hereinafter “applicant”) provides above specific references to applications for which priority is claimed in accordance with law. Applicants are unambiguous in the wording of the specific reference indicated by the statute and may have any reference number or any feature such as “ongoing” or “partially ongoing” to claim priority of a US patent application. I understand that I do not need it. However, since the applicant understands that the USPTO computer program has certain data entry requirements, as indicated above, the present application is displayed as a continuation-in-part of its parent application. It should not be construed as any note and / or self-approval as to whether this application contains any new matter in addition to the matter contained in its parent application.

〔background〕
This application relates generally to nuclear reactor fuel assemblies and specifically configured to control the process of removing volatile fission products and heat released by deflagration waves in a traveling wave fission reactor. A nuclear fission reactor fuel assembly and system, and a method thereof.

  In an operating fission reactor, it is known that neutrons with some known energy are trapped by nuclides with large atomic weights. The resulting compound nuclei split and produce fission products, such as two fission fragments with smaller atomic weight than the compound, and decay products. Examples of nuclides known to cause such splitting by neutrons of various energies include uranium 233, uranium 235, and plutonium 239, which are nuclear source nuclides. For example, thermal neutrons with a kinetic energy of 0.0253 ev (electron volts) can be used to split the nucleus of U235. Fission of thorium 232 and uranium 238, fuel efficient nuclear fuel nuclides, will not cause induced fission except fast neutrons with a kinetic energy of at least 1 MeV (million electron volts). The total kinetic energy released in a single split is about 200 MeV. This kinetic energy is eventually converted into heat.

  The fission process also begins with an initial source of neutrons, releasing more neutrons and converting kinetic energy into heat. This results in a self-sustaining split chain reaction that is followed by a continuous release of heat. Until the nuclear source nucleus is depleted, every time one neutron is absorbed, two or more neutrons are emitted. This phenomenon is used in commercial nuclear reactors to generate heat continuously, which is then used for power generation.

  Attempts have been made to address the accumulation of fission products during reactor operation. US Pat. No. 4,285,891 (issue date: August 25, 1981, inventor: Lane A. Ray et al., Title of invention: “Method of Removing Fission Gas From Irradiated Fuel”) is at least as high as 1000 ° C. A method for removing volatile fission products from irradiated fuel by passing a hydrogen-containing inert gas through a fuel heated to a temperature and then passing a single inert gas through the fuel at a high temperature. Is disclosed.

  US Pat. No. 5,268,947 (issue date: December 7, 1993, inventor: Bernard Bastide et al., Title of invention: “Nuclear Fuel Elements Complicating a Trap for Products Products Based on Oxide”) Is disclosed. This patent has a sintered pellet, which is surrounded by a metallic sheath, allows the capture of fission products and contains or is coated with the pellet. Alternatively, a nuclear fuel element is disclosed wherein the sheath is internally coated with a reagent that captures fission products. The fission product is captured by forming an oxidizing compound that is stable at high temperatures with the capture reagent.

〔Overview〕
According to one aspect of the present disclosure, configured to control a process for removing volatile fission products emitted by deflagration waves in a traveling wave fission reactor, and for storing a porous nuclear fuel body And a fluid control subassembly connected to the storage and configured to control a process of removing at least a portion of volatile fission products from the porous nuclear fuel body. A fission reactor fuel assembly is provided.

  According to one aspect of the present disclosure, the nuclear fuel assembly is configured to control a process for removing volatile fission products in a fuel assembly for a nuclear fission reactor, and is configured to store an exothermic nuclear fuel assembly. Includes a storage section defining a plurality of holes having volatile fission products therein, and a process connected to the storage section to remove at least a part of the volatile fission products from the porous nuclear fuel body. A fission reactor fuel assembly is provided that includes a fluid control subassembly that controls and controllably removes at least a portion of the heat generated by the nuclear fuel body.

  According to one aspect of the present disclosure, the removal of volatile fission products released by the presence of a deflagration wave in a fission reactor fuel assembly is controlled to define a plurality of holes having volatile fission products. A storage unit configured to store a porous nuclear fuel body, and connected to the storage unit, configured to control a process of removing at least a portion of volatile fission products from the porous nuclear fuel body; And a fluid control subassembly.

  According to one aspect of the present disclosure, the nuclear fuel body is configured to control the removal of volatile fission products released by the presence of a deflagration wave in a nuclear fission reactor fuel assembly and to store an exothermic nuclear fuel body. Includes a reservoir defining a plurality of interconnected open cell holes having volatile fission products therein, and at least a portion of the volatile fission products from the porous nuclear fuel body connected to the reservoir. And a fluid control subassembly for controlling the process of removing and controllably removing at least a portion of the heat generated by the nuclear fuel body.

  According to one aspect of the present disclosure, a method of assembling a nuclear fission reactor fuel assembly configured to control a process of removing volatile fission products emitted by deflagration waves in a traveling wave fission reactor. Providing a containment for storing a porous nuclear fuel body, and connecting a fluid control subassembly to the containment and providing a plurality of traveling wave fission reactors in proximity to a plurality of locations corresponding to deflagration waves. Controlling the process of removing at least some of the volatile fission products from the porous nuclear fuel body at a plurality of locations corresponding to deflagration waves in a traveling wave fission reactor by controlling fluid flow in the region And a method comprising the steps of:

  According to one aspect of the present disclosure, a method of assembling a nuclear fission reactor fuel assembly configured to control a process of removing volatile fission products emitted by deflagration waves in a traveling wave fission reactor. A heat generating nuclear fuel body, the nuclear fuel body preparing a storage section defining a plurality of interconnected open cell holes, and connecting a fluid control subassembly to the storage section to accommodate deflagration waves By controlling fluid flow in the region of the traveling wave fission reactor close to the location where it travels, the volatile fission product from the porous nuclear fuel body at a position corresponding to the deflagration wave of the traveling wave fission reactor And controlling the process of removing at least a portion of the heat generated by the nuclear fuel body.

  According to one aspect of the present disclosure, the flow of fluid in a plurality of regions of a traveling wave fission reactor that is proximate to a plurality of locations corresponding to the deflagration wave is used to accommodate a deflagration wave of a traveling wave fission reactor. There is provided a method comprising controlling the process of removing volatile fission products at a plurality of locations.

  According to one aspect of the present disclosure, a method of operating a fluid control subassembly configured to control a process of removing volatile fission products emitted by deflagration waves in a traveling wave fission reactor. Using a containment unit for storing a porous nuclear fuel body having volatile fission products and a fluid control subassembly connected to the containment unit in proximity to a plurality of locations corresponding to deflagration waves By controlling fluid flow in a plurality of regions of the traveling wave fission reactor, at least of the volatile fission products from the porous nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor. And a method of controlling the process of removing the portion.

  According to one aspect of the present disclosure, a method of operating a fluid control subassembly configured to control a process of removing volatile fission products emitted by deflagration waves in a traveling wave fission reactor. A plurality of interconnected open cell holes, using a containment part for storing the heating core fuel body, and using a fluid control subassembly connected to the containment part to provide a plurality of depletion wave Control and progress the process of removing at least some of the volatile fission products from the pores of the nuclear fuel body by controlling fluid flow in multiple regions of the traveling wave fission reactor close to the location Controlling the process of removing at least a portion of the heat generated by the nuclear fuel bodies at a plurality of locations corresponding to the deflagration wave of the wave fission reactor. .

  One feature of the present disclosure presents the use of a containment configured to contain a porous nuclear fuel body with volatile fission products in a traveling wave fission reactor.

  Another feature of the present disclosure is the use in a traveling wave fission reactor of a fluid control subassembly connected to the containment and configured to control the process of removing at least a portion of volatile fission products. Is presented.

  Yet another feature of the present disclosure is presented for use in a traveling wave fission reactor of a fluid control subassembly for controllably removing at least a portion of the heat generated by a nuclear fuel body connected to the containment. To do.

  Yet another aspect of the present disclosure presents the use in a traveling wave fission reactor of a dual purpose circuit that is connected to the containment and selectively removes volatile fission products and heat from the nuclear fuel body. Is.

  In addition to the description above, various other methods and / or devices are described and described in the teachings of the present disclosure, such as text (eg, claims and / or detailed description) and / or drawings.

  The above description is a summary, and therefore the description may be concise and generalized, with some details being included and some being omitted. Consequently, those skilled in the art will appreciate that this summary is merely illustrative and is not intended to be limiting in any way. In addition to the aspects, embodiments, and features that provide the above illustration, further aspects, embodiments, and features should be understood by reference to the drawings and the following detailed description.

[Brief description of the drawings]
The specification concludes with claims that particularly point out and distinctly claim the subject matter of this disclosure. On the other hand, it is contemplated that the present disclosure will be better understood by reference to the detailed description set forth below in connection with the accompanying drawings. Also, when the same reference numeral is used in different drawings, it usually indicates the same or the same component.

  FIG. 1 is a partial longitudinal sectional view of a fuel assembly and system for a nuclear fission reactor according to a first embodiment. The figure also shows volatile fission products present in a plurality of interconnected open cell holes. The open cell holes are defined by a porous nuclear fuel body located in the fission reactor fuel assembly.

  FIG. 2 is a partially enlarged view of a porous nuclear fuel body defining a plurality of interconnected open cell holes. The plurality of open cell holes are exaggerated for easy understanding. This figure also shows the volatile fission products present in the open cell pores.

  FIG. 2A is a partially enlarged view of a nuclear fuel body having a plurality of particles and defining a plurality of channels between the particles. The particles and channels are exaggerated for easy understanding. This figure also shows the volatile fission products present in the channel.

  FIG. 3 is a partial longitudinal sectional view of a fuel assembly and system for a nuclear fission reactor according to a second embodiment.

  FIG. 4 is a partial longitudinal sectional view of a fuel assembly and system for a nuclear fission reactor according to a third embodiment.

  FIG. 5 is a partial longitudinal sectional view of a fuel assembly and system for a nuclear fission reactor according to a fourth embodiment.

  FIG. 6 is a partial longitudinal sectional view of a fission reactor fuel assembly and system according to a fifth embodiment arranged in a plurality of sealed vessels.

  FIG. 6A is a partial longitudinal sectional view of a diaphragm valve having a breakable barrier according to the first embodiment.

  FIG. 6B is a partial longitudinal cross-sectional view of a diaphragm valve having a barrier made brittle by a piston configuration as a second embodiment.

  FIG. 7 is a partial longitudinal cross-sectional view of a plurality of sixth embodiment nuclear fission reactor fuel assemblies and systems with portions disposed outside the sealed vessel.

  FIG. 7A is a partial longitudinal cross-sectional view of a first supply element, a second supply element, and a fluid control subassembly that are operatively connected by a Y-pipe joint.

  FIG. 7B is a partial longitudinal cross-sectional view of the inlet and outlet subassemblies connected to the fluid control subassembly.

  FIG. 7C is a partial longitudinal cross-sectional view of the inlet subassembly connected to the porous nuclear fuel body and the outlet subassembly connected to the fluid control subassembly.

  FIG. 7D is a partial longitudinal cross-sectional view of a plurality of inlet subassemblies connected to a porous nuclear fuel body, a plurality of pumps connected to each of the inlet subassemblies, and an outlet subassembly connected to a fluid control subassembly The assembly is also shown.

  FIG. 7E is a partial longitudinal sectional view of a fuel assembly and system for a fission reactor according to a seventh embodiment. The figure also shows volatile fission products present in a plurality of interconnected open cell holes. The open cell holes are defined by a porous nuclear fuel body disposed in a plurality of fission reactor fuel assemblies.

  FIG. 8 is a partial longitudinal sectional view of a fuel assembly and system for a fission reactor according to an eighth embodiment.

  FIG. 9 is a plan view of a fuel assembly and system for a nuclear fission reactor according to a ninth embodiment.

  10 is a cross-sectional view taken along line 10-10 of FIG.

  FIG. 11 is a partial longitudinal sectional view of a fuel assembly and system for a fission reactor according to a tenth embodiment.

  FIG. 12 is a partial longitudinal sectional view of a fuel assembly and system for a fission reactor according to an eleventh embodiment.

  FIG. 13 is a plan view of a fuel assembly and system for a fission reactor according to a twelfth embodiment.

  14 is a cross-sectional view taken along line 14-14 of FIG.

  FIG. 15 is a partial front view of a fission reactor fuel assembly and system according to a thirteenth embodiment.

  16 is a cross-sectional view taken along line 16-16 in FIG.

  FIG. 17 is a plan view of a fuel assembly and system for a fission reactor according to a fourteenth embodiment.

  18 is a cross-sectional view taken along line 18-18 in FIG.

  FIG. 19 is a partial vertical cross-sectional view of a fission reactor fuel assembly and system according to a fifteenth embodiment.

  FIG. 20 is a partial longitudinal sectional view of a fuel assembly and system for a fission reactor according to a sixteenth embodiment.

  FIGS. 21A-21CQ are flowcharts illustrating a method of assembling a fission reactor fuel assembly configured to control the removal of volatile fission products and the heat release by deflagration waves in a traveling wave fission reactor and method thereof. is there.

  FIG. 22A is a flow chart illustrating a method for removing volatile fission products at multiple locations corresponding to deflagration waves.

  FIGS. 23A-23CK are flowcharts illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method thereof. It is.

[Detailed explanation]
In the following detailed description, reference is made to the accompanying drawings that form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized and other changes may be made without departing from the spirit or scope of the subject matter presented herein.

  In addition, formal headings are used herein for the sake of clarity. However, it should be understood that the headings are illustrative and that different types of subject matter may be described throughout this specification (eg, content relating to devices / structures is under the process / operation headings). And / or process / operation content may be described under the structure / process heading and / or a single topic description may be included in more than one topic heading. It may span). Therefore, the use of formal headings is not intended to be limiting in any way.

  Further, the subject matter described herein may indicate that different components are included in or connected to other different components. It will be appreciated that the structures so described are merely exemplary, and in fact many other structures that implement similar functions may be implemented. In a conceptual sense, the configuration of the components to achieve a similar function is effectively “related” to achieve the desired function. Therefore, the two components herein that are connected to achieve a particular function are “related” to each other so that the desired function is achieved, regardless of structure or intermediate components. Can be considered. Similarly, any two components so associated may also be considered “operably connected” or “operably connected” to each other to achieve the desired functionality. And the two components that can be so associated can also be considered “operably connectable” to each other to achieve the desired functionality. Specific examples of operably connectable components include physically combinable components and / or physically interacting components and / or wirelessly interactable components and / or Including, but not limited to, wirelessly interacting components and / or logically interacting components and / or logically interactable components .

  As used herein, one or more components are “configured to”, “configurable to…”, “operable / operable to…”, “adapted” Examples are described as “/ can be adapted”, “can be ...”, “can be configured / configured in”, etc. Except where otherwise understood in the context, those skilled in the art will generally recognize that "consisting of ..." is an active component and / or an inactive component and / or a standby configuration. It will be understood that elements can be included.

  Thermal build-up during reactor operation can cause the fuel assembly to undergo expansion that leads to misalignment of the reactor core components, and nuclear fuel cladding creep and nuclear fuel cladding rupture and nuclear fuel during reactor operation The risk of swelling of can increase. This can increase the risk of cracking or otherwise decomposing the nuclear fuel. Nuclear fuel cracks can cause nuclear fuel cladding failure mechanisms, such as nuclear fuel cladding dynamic interactions, leading to fission gas release. This fission gas release results in a higher level than the normal radiation level.

  Fission products can be produced during the fission process and stored in nuclear fuel. Fission products containing fissionable gases can lead to undesired amounts of fuel assembly expansion. Such expansion of the fuel assembly can also increase the risk of nuclear fuel splitting and the release of nuclear fuel product appendages into the surrounding environment. By incorporating safety margins into the reactor design and strictly controlling quality during manufacturing, these risks are reduced to a minimum level, but in some cases they are further reduced It may be appropriate.

Referring now to FIG. 1, there is shown a nuclear reactor fuel assembly and system according to a first embodiment, generally referred to as 10. The nuclear reactor fuel assembly and system is for generating heat by fission of a fissile nuclide such as uranium 235, uranium 233, or plutonium 239, or fast fission of a nuclide such as thorium 232 or uranium 238. It will also be understood from the following description that the fuel assembly 10 is capable of controlling the removal of volatile fission products 15 produced during the fission process. Volatile fission products 15 are generated by a progressive deflagration wave 16 that is initiated by a fission igniter 17 that is relatively small and removable. In this embodiment, for example, the fission igniter 17 includes a moderate isotope enrichment of fissile material such as, but not limited to, ²³³ U, ²³⁵ U, ²³⁹ Pu, and a predetermined location in the fuel assembly 10. Is properly arranged. Neutrons are emitted by the igniter 17. This neutron emitted by the igniter 17 is captured by fissile material and / or raw material within the fissile fuel assembly 10 to initiate a fission chain reaction. If desired, the igniter 17 may be removed once the chain reaction has become autonomous. Corresponding to the controlled positioning of the deflagration wave 16 in the nuclear reactor fuel assembly 10, volatile fission products 15 can be controlled and released. Any embodiment of the fuel assembly described herein may be used as a component of a traveling wave nuclear reactor. Roderic A. Such a traveling wave nuclear reactor is described in US Patent Publication No. 11 / 605,943, filed on Nov. 28, 2006 under the name "Automated Nuclear Power Reactor Long-Term Operation" by Hyde et al. Is disclosed in detail. This publication is assigned to the assignee of the present application of this publication, and the entire disclosure of this publication is incorporated into this publication by reference.

  With continued reference to FIG. 1, the fuel assembly 10 includes a storage portion 20 having a storage wall 30 for hermetically storing the porous nuclear fuel body 40 therein. The nuclear fuel body 40 includes the above-mentioned fissile nuclides such as uranium 235, uranium 233, or plutonium 239, for example. The nuclear fuel body 40 also includes nuclides that can be converted to the above-mentioned fissile isotopes, such as thorium 232 and / or uranium 238, which denature during the fission process into one or more of the above-mentioned fissile nuclides. Also good. Further, the nuclear fuel body 40 may include a predetermined mixture of fissile nuclides and nuclides that can be converted into fissile isotopes. As described in more detail below, nuclear fuel assembly 40 may be composed of iodine, bromine, cesium, potassium, rubidium, strontium, xenon, krypton, barium isotopes, and combinations or other gases. A volatile fission product 15 can be produced which can be in the form of a volatile material.

Referring to FIG. 1 again, as described above, the porous nuclear fuel body 40 may mainly include a metal such as uranium, thorium, and plutonium, or an alloy thereof. More specifically, the nuclear fuel body 40 includes uranium monoxide (UO), uranium dioxide (UO ₂ ), thorium dioxide (ThO ₂ ) (also referred to as thorium oxide), uranium trioxide (UO ₃ ), uranium oxide. It may be a porous material consisting of an oxide selected from the group consisting essentially of plutonium oxide (UO-PuO), triuranium octoxide (U ₃ O ₈ ), and mixtures thereof. . Moreover, the nuclear fuel body 40 may mainly contain uranium carbide (UC _x ) or thorium carbide (ThC _x ). For example, the nuclear fuel body 40 includes uranium monocarbide (UC), uranium dicarbide (UC ₂ ), diuranium tricarbide (U ₂ C ₃ ), thorium dicarbide (ThC ₂ ), thorium carbide (ThC), and these It may also be a foam material made of carbide selected from the group consisting essentially of a mixture of Uranium carbide or thorium carbide may be sputtered onto the niobium carbide (NbC) and zirconium carbide (ZrC) base materials to form the nuclear fuel body 40. A potential advantage of using niobium carbide and zirconium carbide is that they form a refractive structural substrate for uranium carbide or thorium carbide. As another example, the nuclear fuel body 40 includes uranium nitride (U ₃ N ₂ ), uranium nitride-zirconium nitride (U ₃ N ₂ -Zr ₃ N ₄ ), uranium-plutonium mixed nitride ((U-Pu) N). It may be a porous material made of nitride selected from the group consisting essentially of thorium nitride (ThN), uranium-zirconium alloy (UZr), and mixtures thereof. As best seen in FIGS. 2 and 2A, the porous nuclear fuel body 40 may define a plurality of interconnected open cell holes 50 that are spatially distributed within the nuclear fuel body 40. , The term “open cell holes” means that each hole 50 is interconnected to one or more adjacent holes 50, so that a fluid such as a gas or liquid is It can move directly between the holes 50. That is, the open cell holes 50 are arranged inside the nuclear fuel body 40 so as to form a fiber-like structure, a rod-like structure, a web-like structure, or a honeycomb structure. Also, the nuclear fuel body 40 is a porous nuclear fuel formed by a collection of nuclear fuel particles 63 (such as sintered beads or compressed spheres) that define a plurality of interstitial channels 65 between itself. It may contain material. Further, the open cell holes 50 may be disposed inside the nuclear fuel material having mixed characteristics of foaming characteristics and porous characteristics. The following description regarding hole 50 is also applicable to channel 65.

  Referring again to FIGS. 2 and 2A, the volatile fission products 15 produced by the deflagration wave 16 may initially be present in some or all of the holes 50 and may naturally pass through the nuclear fuel body 40. It can diffuse while evaporating. At least some of the holes 50 have a predetermined configuration for allowing at least a portion of the volatile fission product 15 to escape the holes 50 of the porous nuclear fuel material 40 within a predetermined reaction time. The predetermined reaction time may be between about 10 seconds and about 1,000 seconds. Also, the predetermined reaction time may be between about 1 second and about 10,000 seconds depending on the predetermined configuration of the holes 50.

  Returning to FIG. 1, a fluid control subassembly 80 that defines a first container 90 containing a first fluid, eg, pressurized helium gas, is connected to the containment 20, eg, by a first pipe portion 70. Yes. The first fluid may be any inert gas such as, but not limited to, neon, argon, krypton, xenon, and mixtures thereof that are appropriately pressurized. Further, the first fluid may be a suitable liquid, such as liquid lead (PB), liquid sodium (Na), liquid lithium (Li), liquid mercury (Hg) or similar liquid, or a mixture of liquids. That's fine. As described in more detail below, the fluid control subassembly 80 assists in controllably removing volatile fission products 15 and heat from the nuclear fuel body 40. In other words, the fluid control subassembly 80 can circulate the first fluid through the porous nuclear fuel body 40. In this way, heat and volatile fission products 15 are removed from the nuclear fuel body 40 while the first fluid circulates through the nuclear fuel body 40.

  FIG. 3 shows a nuclear reactor fuel assembly and system according to a second embodiment, generally designated 100. The fuel assembly 100 according to the second embodiment is substantially the same as the fuel assembly 10 according to the first embodiment, except that the heat exchanger 110 is connected to the storage unit 20. The heat exchanger 110 includes a shell 120 that defines a container 130 capable of storing a second fluid for cooling the first fluid. The first fluid is used to remove heat and volatile fission products 15 from the nuclear fuel body 40. The second fluid has a temperature lower than that of the first fluid. A plurality of U-shaped tubes 132 (only one of which is shown) having two open ends are disposed in the container 130. In this embodiment, one end of the U-shaped tube 132 is provided with an opening 134, and the other end of the U-shaped tube 132 is provided with another opening 136. Openings 134 and 136 are in communication by a first fluid occupying first container 90 of fluid control subassembly 80. There is a density difference between the cooled portion of the first fluid present inside the tube 132 and the warm portion of the first fluid in the porous nuclear fuel body 40. Due to this temperature difference, a density difference is generated between the cooling portion of the first fluid existing inside the tube 132 and the warm portion of the first fluid in the porous nuclear fuel body 40. Similarly, because the cooler fluid portion is physically higher than the warmer fluid portion (i.e. above the warmer fluid portion), the above density difference of the fluid causes the molecules of the cooler fluid portion to become more It is exchanged for molecules in the warm fluid part. In this way, the exchange of the cooler and warmer fluid portions occurs, resulting in a natural convective flow that circulates the first fluid through the fuel assembly 100 and the nuclear fuel body 40. Furthermore, the tube 132 is U-shaped and the heat exchange surface area is increased to improve this natural convection. Thus, natural convection is required to circulate the first fluid due to a substantial temperature difference between the cooler and warmer portions of the first fluid. As the first fluid circulates through the tube 132, a second fluid that is at a substantially lower temperature than the first fluid is passed through the inlet nozzle 140 and into the container 130, for example by a pump (not shown). enter in. Subsequently, the second fluid exits the container 130 from the outlet nozzle 150. As the second fluid enters the heat exchanger 110 and exits the heat exchanger 110, the lower temperature second fluid will surround the plurality of U-shaped tubes 132. Conductive heat exchange through the wall of the tube 132 takes place between the first fluid circulating in the tube 132 and the second fluid surrounding the tube 132. In this way, the warmer first fluid finishes providing heat to the cooler second fluid.

  Referring again to FIG. 3, the fuel assembly 100 according to this second embodiment has a first fluid that can be circulated by natural convection without using a pump or valve to circulate the first fluid. It may be operable. The absence of the pump and the valve improves the reliability of the fuel assembly 100 according to the second embodiment while reducing the manufacturing cost and the maintenance cost of the fuel assembly 100 according to the second embodiment.

  Still referring to FIG. If desired, the heat exchanger 110 may serve as a steam generator. That is, depending on the temperature and pressure in the heat exchanger 110, part of the second fluid may evaporate (when the second fluid is water) and flow out from the outlet nozzle 150. The steam exiting the outlet nozzle 150 can be transported to a turbine generator device (not shown) to generate current from the steam in a manner well known in the power generation art.

  Referring to FIG. 4, a nuclear reactor fuel assembly and system according to a third embodiment is shown generally as 190. This nuclear reactor fuel assembly and system is primarily intended for removing heat and volatile fission products 15 from the nuclear fuel body 40. The nuclear reactor fuel assembly 190 according to the third embodiment communicates with the first container 90 at one end of the second pipe portion 200 and is centrifuged at the other end of the second pipe portion 200. A second pipe portion 200 integrally connected to the inlet of the first pump 210, which may be a pump of the type. Such a pump suitable for this purpose may for example be of the type made by Sulzer Pumps, Ltd, located in Wintertour, Switzerland. The outlet of the first pump 210 is now connected to a third pipe portion 220 that leads to the nuclear fuel body 40. Further, the heat exchanger 110 may be connected to the third pipe portion 220 to remove heat from the fluid flowing through the third pipe portion 220.

With continued reference to FIG. 4, the first pump 210 is activated to remove heat from the nuclear fuel body 40. The first pump 210 draws fluid, such as the above-described helium gas, from the second pipe portion 200, ie, from the first container 90 defined by the fluid control subassembly 80. The first pump 210 pumps fluid through the third pipe portion 220. The fluid flowing through the third pipe portion 220 is received by a plurality (or multiple) of open cell holes 50 defined by the nuclear fuel body 40. The fluid flowing through the open cell holes 50 obtains heat generated by the nuclear fuel body 40. As the fluid is pumped through the open cell holes 50 by the first pump 210, heat is obtained by forced convective heat conversion. As the first pump 210 operates, the fluid that experiences convective heat conversion while flowing through the nuclear fuel body 40 is subject to the first pipe portion 70 to the second pipe portion due to the pumping action of the pump 210. Heat is drawn through the 200 to the first container 90 and to the third pipe portion 220 and heat is removed by the heat exchanger 110. Further, while the fluid circulates between the nuclear fuel body 40 and the first container 90, the volatile fission product 15 derived from the nuclear fuel body 40 is retained and captured inside the first container 90, and as a result. The fission product 15 present in the nuclear fuel body 40 may be removed or at least reduced. In this embodiment, the first container 90 may be covered with a fission product capture material 225 that holds the fission product 15 as the fission product removal fluid enters the container 90. The fission product capture material may be, in a limited way, silver zincate (AgZ) to remove xenon (Xe) and krypton (Kr), or the fission product capture material may be cesium ( Cs), rubidium (Rb), iodine (I ₂ ), tellurium (Te) radioisotopes and mixtures thereof may be used to remove, without limitation, silicon dioxide (SiO ₂ ) or titanium dioxide ( A metal oxide of TiO ₂ ) may be used. The usefulness of using the fuel assembly 190 according to this third embodiment is that only the pump 210 is required to circulate the first fluid. A valve is not required. The absence of the valve improves the reliability of the fuel assembly 190 according to the third embodiment while reducing the manufacturing cost and maintenance cost of the fuel assembly 190 according to the third embodiment.

  Referring to FIG. 5, a nuclear reactor fuel assembly and system according to a fourth embodiment, generally referred to as 230, removes not only heat but also the volatile fission products 15 described above from the nuclear fuel body 40. This can be further improved. The nuclear reactor fuel assembly 230 according to the fourth embodiment is related to the third embodiment except that a means for improving the removal of heat and volatile fission products 15 is added. This is substantially the same as the nuclear reactor fuel assembly 190. In this embodiment, the fourth pipe portion 240 includes one end that communicates with the first container 90 and the other end that is integrally connected to the inlet of the second pump 250. The discharge port of the second pump 250 is integrally connected to the sixth pipe portion 260. The sixth pipe portion 260 leads in turn to a second vessel 270 defined by a first fission product reservoir or holding tank 280. During operation of the fuel assembly 230 according to the fourth embodiment, the pump 210 passes the first fluid from the first vessel 90 through the second pipe portion 200, through the third pipe portion 220, and the nuclear fuel. Pump through body 40, through first pipe portion 70, and back into first container 90. As the first fluid flows through the third pipe portion 220, the fluid passes heat to the second fluid in the heat exchanger 110. The first pump 210 may stop operating after a predetermined time has elapsed. Then, the second pump 250 passes the fission product 15 containing the first fluid mixed between the fission products 15 through the fourth pipe portion 240, the fifth pipe portion, It may be activated to draw into a second container 270 defined by one fission product reservoir or holding tank 280. In this way, the volatile fission product 15 is removed from the nuclear fuel body 40 and subsequently retained in the first fission product reservoir or holding tank 280 for subsequent off-site disposal, Alternatively, the fission product 15 in the reservoir or holding tank 280 may remain in place if desired. The fuel assembly 230 according to this fourth embodiment requires only the pump 210/250. A valve is not required. The absence of the valve improves the reliability of the fuel assembly 230 according to the third embodiment while reducing the manufacturing cost and maintenance cost of the fuel assembly 230 according to the fourth embodiment. Another utility of the fuel assembly 230 according to the fourth embodiment is that the volatile fission product 15 is separated in the second vessel 270 and can be removed for subsequent off-site disposal, or The point that can remain in place.

  Referring to FIG. 6, a nuclear reactor fuel assembly and system according to a fifth embodiment is shown generally as 290. In this embodiment, there may be a plurality of nuclear reactor fuel assemblies 290 according to the fifth embodiment (only three of them are shown). An encapsulable vessel 310, such as a pressure vessel or containment vessel, surrounds the nuclear reactor fuel assembly to prevent radioactive particles, gases, or liquids from leaking from the fuel assembly 290 to the surrounding environment. It is out. The container 310 is formed of iron, concrete, or other material that is the appropriate size and thickness to reduce the risk of leakage of such radioactive materials and to support the necessary pressure loads. It may be. Although only one vessel 310 is shown, one may include the other to additionally compensate that leakage of radioactive particles, gas, or liquid from the nuclear reactor fuel assembly is prevented. There may be additional containment vessels surrounding the vessel 310. The container 310 defines a well 320 in the container 310 in which the nuclear reactor fuel assembly 290 according to the fifth embodiment is disposed. The nuclear reactor fuel assembly 290 according to the fifth embodiment is capable of heat build-up and controlled removal of volatile fission products 15 and is described in more detail below.

  Referring again to FIG. 6, the fuel assembly 290 is a small, complex, closed loop, generally designated 330, dual purpose for heat removal and volatile fission product removal. A peripheral circuit is provided. The dual purpose circuit 330 can selectively remove heat and volatile fission products 15 from the nuclear fuel body 40. In this embodiment, circuit 330 may be initially operated to remove volatile fission product 15, followed by heat removal, or vice versa. In this way, the circuit 330 can continuously remove heat and fission products 15.

  Still referring to FIG. 6, the dual purpose circumferential circuit 330 includes the fluid control subassembly 80 described above that defines a first container 90 containing a supply fluid. The first pipe portion 70 communicates with the nuclear fuel body 40 at one end of the first pipe portion 70, and may be a centrifugal pump at the other end of the first pipe portion 70. The inlet of the pump 340 is integrally connected. The outlet of the third pump 340 is connected to a sixth pipe portion 350 that in turn leads to the first container 90. The second pipe portion 200 communicates with the first container 90 at one end of the second pipe portion 200, and is integrated with the inlet of the first pump 210 at the other end of the second pipe portion 200. It is connected to the. Pumps 340 and 210 are selected so that either of pump 340 and pump 210 operating alone can circulate fluid at full speed, but not at maximum speed, in dual purpose circuit 330. May be. That is, even if pump 340 or pump 210 is not present, the power is turned off, or otherwise not functioning, the dual purpose circuit will allow fluid circulation through the dual purpose circuit 330. Will remain. In a third pipe section 220 between the seventh pipe section 360 and the containment section 20, a heat exchanger 355 removes heat from the fluid as the fluid circulates through the dual purpose circuit 330. Has been placed. The heat exchanger 355 may be substantially similar to the heat exchanger 110 in configuration. A second volatile fission product reservoir or holding tank 370 is connected to any one of the pipe sections 70/200/220/350, such as the seventh pipe section 360, for example. The second storage or holding tank 370 defines a third container 380 for holding and separating the volatile fission product 15. The second storage or holding tank 370 is connected to the third pipe portion 220 via the seventh pipe portion 360. The motor operated first backflow prevention valve 390 prevents the volatile fission product 15 from flowing into the third container 380 and prevents the volatile fission product 15 from flowing back from the third container 380. And operably connected to the seventh pipe portion 360. The motor operated first backflow prevention valve 390 may be operable by operation of a control device or control unit 400 electrically connected to the motor operated first backflow prevention valve 390. Also, valve 390 need not be motor operated, but may be actuated by other suitable means. Such a backflow prevention valve suitable for this purpose may be, for example, that of Emerson Process Manufacturing, Ltd, located in Bar, Switzerland. As described in more detail below, the volatile fission product 15 produced by the nuclear fuel body 40 is captured within the third vessel 380 to separate the volatile fission product 15. Retained.

  Still referring to FIG. 6, a motor operated second backflow prevention valve 410 is operatively connected to the third pipe portion 220, and the first backflow prevention valve 390, the storage portion 20, It is arranged between. The second backflow prevention valve 410 allows fluid to flow into the storage unit 20 but cannot flow back from the storage unit 20 to the third pipe portion 220. The motor-operated second backflow prevention valve 410 may be operable by the operation of a control device or control unit 400 that is electrically connected to the motor-operated second backflow prevention valve 410. Thus, the first pipe portion 70, the third pump 340, the sixth pipe portion 350, the heat exchanger 355, the fluid control subassembly 80, the second pipe portion 200, the first pump 210, the third Pipe portion 220, seventh pipe portion 360, second fission product reservoir or holding tank 370, first backflow prevention valve 390, second backflow prevention valve 410, control unit 400, and nuclear fuel body 40 Both define a dual purpose circuit 330. As described in more detail herein, the dual purpose circuit 330 may be used to selectively remove the thermal and volatile fission products 15 from the nuclear fuel body 40 continuously or simultaneously. The fluid can be circulated through the open cell holes 50. The utility of nuclear reactor fuel assembly 290 according to this fifth embodiment is that dual purpose circuit 330 is volatile by the controlled movement of pumps 210/340, valves 390/410, and control unit 400. It will be understood from the description herein that the fission product 15 and heat of the material can be selectively removed continuously.

  Referring again to FIG. 6, a plurality of sensors or neutron flux detectors 412 (only one of which is shown) are used in the nuclear fuel body 40 to detect various operating characteristics of the nuclear fuel body 40. May be arranged. For purposes of explanation and not limitation, the detector 412 is adapted to detect operating characteristics relating to the neutron number level, power level, and / or position of the deflagration wave 16 in the nuclear fuel body 40. May be. The detector 412 is connected to a control unit 400 that controls the operation of the detector 412. A plurality of fission product pressure detectors 413 (only one of which is shown) are disposed in the nuclear fuel body 40 to detect the pressure level of the fission products in the nuclear fuel body 40. May be. Further, the control unit 400 may volatilize according to the time that the nuclear reactor fuel assembly 290 is operated continuously or periodically and / or according to any process associated with the nuclear reactor fuel assembly 290. Valves 390 and 410 can be actuated to control sex fission product 15 and heat release. Suitable control devices for use as the control unit 400 may be, for example, those made by Stollley and Orlebeke, Incorporated, located in Elmhurst, Illinois, USA. In addition, suitable neutron detectors for this purpose may be those made by Thermo Fisher Scientific, Incorporated, located in Waltham, Massachusetts, USA. Suitable pressure detectors may also be those made by Kaman Measuring Systems, Incorporated, located in Colorado Springs, Colorado, USA.

  As shown in FIGS. 6A and 6B, if desired, a first embodiment diaphragm valve having a hollow valve body 415, generally designated 414a, may be provided as valves 390 and / or 410. An alternative valve may be used. Moreover, as shown, the above-described backflow prevention valve 390 or 410 may be used in combination with the diaphragm valve 414a of the first aspect. Disposed within the hollow valve body 415 are a plurality of frangible barriers or membranes 416 that may be thin elastomers or thin cross-section metals. The membrane 416 breaks or breaks when a given system pressure is applied. Each thin film 416 is attached to an auxiliary member 417 of the plurality of auxiliary members 417 corresponding to the thin film 416 by, for example, a fastener 418. The auxiliary object 417 is integrally connected to the valve body 415. Also, either of the valves 390 and 410 has a fragile barrier or membrane 416 that is broken by the arrangement of the piston, generally designated 419, and the diaphragm of the second embodiment, generally designated 414b. It may be a valve. As shown, the diaphragm valve 414b of the second aspect may be used in combination with the backflow prevention valve 390 or 410. The array of pistons 419 has a piston 419a that is movable to break the membrane 416. Each piston 419a can be moved by a motor 419b. The motor 419b is connected to the control unit 400 so that the control unit 400 controls the motor 419b. Thus, as the operator operates the control unit 400, each piston 419a is movable to break the membrane 416 by the operator's action. Valve 414b may be a custom-made valve utilizing a product of Solenoid Solutions, Incorporated, located in Erie, Pennsylvania, USA. However, if desired, valves 414a and 414b may be check valves rather than diaphragm valves.

  Returning to FIG. 6, the operation of the dual objective circuit 330 to remove the volatile fission product 15 from the nuclear fuel body 40 is now described. As described above, the circuit 330 may operate to continuously and selectively remove heat and volatile fission products 15 from the nuclear fuel body 40. In order to remove the volatile fission product 15 from the nuclear fuel body 40, the second valve is opened while the first valve 390 is opened, for example, by the operation of the control unit 400 to which the valve 390/410 is electrically connected. 410 is closed. As described above, the volatile fission product 15 is generated by the deflagration wave 16 in the nuclear fuel body 40 and exists in the open cell hole 50. The third pump 340 can be selectively operated, for example by the control unit 400, and the fission product 15 obtained by the open cell holes 50 is transferred from the first pipe portion 70 to the sixth pipe portion 350. Then, it is drawn out to the first container 90. Then, the first pump 210 draws the fission product 15 from the first container 90 through the second pipe portion 200. The first pump 210 pumps the nuclear fuel product 15 from the second pipe portion 200 through the third pipe portion 220. Since the first valve 390 is open and the second valve 410 is closed, the fission product 15 flowing along the third pipe portion 220 is not contained in the second fission product reservoir or holding tank. Diverted to 370. If desired, the second valve 410 is opened while the first valve 390 is closed after a predetermined time to resume removal of the fission product 15 from the nuclear fuel body 40.

  The operation of the circuit 330 for removing heat from the nuclear fuel body 40 will now be described with continued reference to FIG. In order to remove heat from the nuclear fuel body 40, the second valve 410 is opened while the first valve 390 is closed by the operation of the control unit 400, for example. The first pump 210 and the third pump 340 are also activated by the operation of the control unit 400. The first pump 210 draws fluid, such as the above-described helium gas, from the first container 90 defined by the fluid control subassembly 80 through the first pipe portion 200. The first pump 210 pumps fluid through the third pipe portion 220. The heat exchanger 355 described above is in heat exchange with the fluid flowing through the third pipe portion 220 to remove heat propagated by the fluid. Fluid flowing through the third pipe portion 220 is not diverted to the second fission product reservoir or holding tank 370 because the first valve 390 is closed. The fluid flowing through the third pipe portion 220 is received by a plurality (or multiple) of open cell holes 50 defined by the porous nuclear fuel body 40. The fluid received by the open cell holes 50 obtains heat generated by the nuclear fuel body 40. As the fluid flows through the open cell holes 50, heat is obtained by continuous heat exchange. As the continuous heat exchange occurs inside the nuclear fuel body 40, the third pump 340 is operated by the control unit 400, for example. As the third pump 340 is activated, the continuous heat exchanged fluid present in the nuclear fuel body 40 is drawn from the first pipe portion 70 to the first vessel 90. The utility of using a nuclear reactor fuel assembly 290 according to the fifth embodiment is that a small dual purpose circuit 330 continuously and selectively removes volatile fission products 15 and removes heat. It can be, or vice versa. This result is achieved by operation of pumps 210/340 and valves 390/410 controlled not only by control unit 400 but also by heat exchanger 355.

  Referring to FIG. 7, a nuclear reactor fuel assembly and system according to a sixth embodiment is shown generally as 420. The following components: first pipe portion 70, third pump 340, sixth pipe portion 350, fluid control subassembly 80, second pipe portion 200, first pump 210, third pipe portion 220 , First valve 390, heat exchanger 355, seventh pipe portion 360, second fission product reservoir or holding tank 370, second valve 410, and control unit 400 are substantially relative to vessel 310. The fuel assembly 420 according to the sixth embodiment is substantially the same as the fuel assembly 290 according to the fifth embodiment, except that the fuel assembly 420 is disposed outside. In some cases, these components are located external to the vessel 310 without exposing the maintenance device and reactor personnel to radioactive levels within the vessel 310 during maintenance. These components can be more easily accessible for easier maintenance.

As seen in FIG. 7A, the first fluid supply reservoir or first element 422, the second fluid supply reservoir or second element 423, and the fluid control subassembly 80 include a Y-shaped pipe. The joints 424 are operatively connected to each other. The first fluid supply element 422 passes the fission product removal fluid to the fluid control subassembly so that the fluid control subassembly 80 can circulate the fission product removal fluid through the open cell holes 50 of the nuclear fuel body 40. 80 can be supplied. In this manner, at least a portion of the volatile fission product 15 stored in the hole 50 of the nuclear fuel body 40 is retained in the hole 50 while the fluid control subassembly 80 circulates the fission product removal fluid through the hole 50. Removed from. Further, the second fluid supply element 423 can supply heat removal fluid to the fluid control subassembly 80 such that the fluid control subassembly 80 can circulate the heat removal fluid through the holes in the nuclear fuel body 40. is there. In this manner, at least a portion of the heat generated by the nuclear fuel body 40 is removed from the nuclear fuel body 40 while the fluid control subassembly 80 circulates the heat removal fluid through the nuclear fuel body 40. The nuclear fuel product removal fluid may be limited to hydrogen (H ₂ ), helium (He), carbon dioxide (CO ₂ ), and / or methane (CH ₄ ). The heat removal fluid is not limited, but is hydrogen (H ₂ ), helium (He), carbon dioxide (CO ₂ ), sodium (Na), lead (Pb), sodium potassium (NaK), lithium (Li ), “Light” water (H ₂ O), lead-bismuth alloy (Pb—Bi), and / or iron-lithium-beryllium (FLiBe). The first element 422 and the second element 423 may be substantially the same in configuration. A pair of backflow prevention valves (not shown) are provided for the vessel flow rather than the reverse flow of the fission product removal fluid and the heat removal fluid from the vessel 90 to the first element 422 or the second element 423. 90 may be integrally connected to each of the elements 422/423 to control the flow to 90. In this manner, the first element 422 and the second element 423 can supply fission product removal fluid and heat removal fluid to the fluid control subassembly 80, respectively. In other words, the first element 422 and the second element 423 can continuously supply fission product removal fluid and heat removal fluid to the fluid control subassembly 80, respectively. In addition, a pair of pumps (not shown) are provided to each of the first element 422 and the second element 423 to deliver fission product removal fluid and heat removal fluid to the fluid control subassembly 80. It is connected.

  Referring to FIG. 7B, the fluid control subassembly may alternatively include an inlet subassembly 426 to supply fission product removal fluid to the fluid control subassembly 80. A valve 426 ′ may be disposed between the inlet subassembly 426 and the fluid control subassembly 80 to control the flow of fission product removal fluid from the inlet subassembly 426 to the vessel 90. . A fourth pump 340 ′ leading to the vessel 90 and connected to the nuclear fuel body 40 may then send fission product removal fluid into the porous nuclear fuel body 40. An outlet subassembly 427 is also provided for removing fission product removal fluid from the porous nuclear fuel body 40. In this embodiment, a third pump 340 is activated to draw fission product removal fluid from the nuclear fuel body 40 to the fluid control subassembly 80. Thereafter, the fission product removal fluid flows into the outlet subassembly 427. Another valve 427 ′ may be disposed between the outlet subassembly 427 and the fluid control subassembly 80 to control the flow of fission product removal fluid to the outlet subassembly 427. In operation, when valve 427 ′ is closed while valve 426 ′ is open, fission product removal fluid in inlet subassembly 426 is transferred to vessel 90 by pump 340 ′ and subsequently to nuclear fuel body 40. Be drawn. After the fission product removal fluid has been substantially discharged from the inlet subassembly 426, the pump 340 'is deactivated. Subsequently, the valve 427 'is opened while the valve 426' is closed. The pump 340 is then activated to draw the fission product removal fluid from the nuclear fuel body 40 into the vessel 90. The fission product removal fluid then moves to the outlet subassembly 427. If desired, a heat exchanger 35 may be disposed between the fluid control subassembly 80 and the outlet subassembly 427 to remove heat from the fluid.

  With reference to FIG. 7C, the fluid control subassembly may alternatively include an inlet subassembly 426 connected to the containment 20. The optional pump 340a sends the fission product removal fluid from the inlet subassembly 426 through the pipe 426 'and the pipe 70a to the nuclear fuel body 40. Fission product removal fluid is withdrawn from the nuclear fuel body 40 through the pipe 70b by, for example, another optional pump 340b and then flows into the fluid control subassembly 80. Fission product removal fluid is pumped therefrom by optional pump 340c such that the fission product removal fluid flows through pipe 427 'to outlet subassembly 427. If desired, some or all of pumps 340a, 340b, and 340c may be omitted. If desired, a heat exchanger 355 may be disposed between the fluid control subassembly 80 and the outlet subassembly 427 to remove heat from the fission product removal fluid.

  Referring to FIG. 7D, the fluid control subassembly 80 may alternatively include a plurality of outlet subassemblies 428a / 428b / 428c for receiving fission product removal fluid from the porous nuclear fuel body 40. In addition, a plurality of pumps 429a / 429b / 429c connected to the plurality of outlet subassemblies 428a / 428b / 428c, respectively. Pumps 429a / 429b / 429c are configured to deliver fission product removal fluid along pipes 70a / 70b / 70c to each of the plurality of outlet subassemblies 428a / 428b / 428c. Fission product removal fluid flows through the pipe 71 into the fluid control subassembly 80 due to the pumping action of the pump 71 '. The fission product removal fluid flows from there through the pipe 427 'into the reservoir 427 due to the pumping action of the pump 429d. If desired, some or all of pumps 429a, 429b, 429c, 429d, and 71 'may be omitted. If desired, a heat exchanger 355 may be disposed between the fluid control subassembly 80 and the outlet subassembly 427 to remove heat from the fluid.

  Referring to FIG. 7E, a nuclear reactor fuel assembly and system according to a seventh embodiment for generating heat due to fissile nuclides, generally referred to as 430, is shown. The nuclear reactor fuel assembly and system according to the seventh embodiment is different from the nuclear reactor fuel assembly according to the first embodiment except that a plurality of storage portions 20a, 20b, and 20c exist. And substantially the same as the system 10. Each of the storage portions 20a, 20b, and 20c is connected to the fluid control subassembly 80 by a plurality of pipe portions 72a, 72b, and 72c, respectively. In other respects, the nuclear reactor fuel assembly and system 430 according to the seventh embodiment operates in the same manner as the nuclear reactor fuel assembly and system 10 according to the first embodiment.

  Referring to FIG. 8, generally designated as 438, a nuclear reactor fuel assembly and system according to an eighth embodiment is shown. The nuclear reactor fuel assembly 438 in accordance with this eighth embodiment includes a fission product flow path, generally designated 440, and a separate heat, generally designated 450, with a dual purpose circuit 330. The nuclear reactor is different from the nuclear reactor fuel assembly 290 according to the fifth embodiment and the nuclear reactor fuel assembly 420 according to the sixth embodiment in that it is replaced with a removal flow path. The purpose of the heat removal channel 450 is to remove heat from the nuclear fuel body 40. The purpose of the fission product flow path 440 is to separate and remove the volatile fission product 15 from the nuclear fuel body 40. The heat removal channel 450 includes the fluid control subassembly 80 described above that defines the first container 90. The first container 90 contains a fluid, such as helium gas, used to remove heat. The first pipe portion 70 communicates with the nuclear fuel body 40 at one end of the first pipe portion 70, and is integrally connected to the inlet of the third pump 340 at the other end of the first pipe portion 70. Has been. The outlet of the third pump 340 is connected to a sixth pipe portion 350 that in turn leads to the first container 90. The second pipe portion 200 communicates with the first container 90 at one end of the second pipe portion 200, and is integrated with the inlet of the first pump 210 at the other end of the second pipe portion 200. It is connected to the. The outlet of the first pump 210 is now connected to a third pipe portion 220 that leads to the nuclear fuel body 40. A heat exchanger 355 is connected to the third pipe portion 220 to remove heat from the fluid. Thus, the first pipe portion 70, the third pump 340, the sixth pipe portion 350, the fluid control subassembly 80, the second pipe portion 200, the first pump 210, the third pipe portion 220. The nuclear fuel body 40 itself and the heat exchanger 355 together define the heat removal channel 450. As will be described in more detail below, the heat removal flow channel 450 can circulate a heat removal fluid through the heat exchanger 355 and the open cell holes 50 of the nuclear fuel body 40.

  With continued reference to FIG. 8, the fission product flow path 440 includes a first flow pipe 460 having one end leading to the nuclear fuel body 40. The other end of the first flow pipe 460 is connected to an inlet of a fifth pump 470 which may be a centrifugal pump. The outlet of the fifth pump 470 is connected to the second flow pipe 480. The second flow pipe 480 leads to a fourth vessel 490 defined by a third fission product reservoir or holding tank 500. As described in more detail below, the fission product flow path 440 can separate and remove the fission product 15 from the nuclear fuel body 40.

  The operation of the heat removal flow channel 450 for removing heat from the nuclear fuel body 40 will now be described with reference again to FIG. In this embodiment, the first pump 210 and the third pump 340 are activated by, for example, the control unit 400 to remove heat from the nuclear fuel body 40. The first pump 210 draws a heat removal fluid, such as the above-described helium gas, from the first vessel 90 defined by the fluid control subassembly 80 through the first pipe portion 200. The first pump 210 pumps fluid through the third pipe portion 220. The fluid flowing through the third pipe portion 220 is received by a plurality (or multiple) of open cell holes 50 defined by the nuclear fuel body 40. The fluid received by the open cell holes 50 obtains the heat generated by the nuclear fuel body 40. As the fluid flows through the open cell holes 50, heat is obtained by continuous heat exchange. As the continuous heat exchange occurs inside the nuclear fuel body 40, the third pump 340 is operated by the control unit 400, for example. As the third pump 340 is activated, fluid undergoing continuous heat exchange in the nuclear fuel body 40 is withdrawn from the first pipe portion 70 by the third pump 340, followed by the third pump. 340 is fed into the first container 90. The first pump 210, the third pump 340, and the fourth pump 470 can be selectively operated by the control unit 400, respectively. The heat exchanger 355 described above, which is in heat exchange connection with the fluid flowing through the third pipe portion 220, removes heat from the fluid. The pumps 340 and 210 are selected such that the heat removal channel 450 includes the pump 340 alone, the pump 210 alone, or the pumps 340 and 210 together. In other words, heat can be removed at maximum speed by operating pumps 340 and 210 simultaneously. Also, if any of pumps 340 and 210 are not functioning or are not available, operating pump 340 or 210 alone will remove heat at a sufficient speed but not at the maximum speed. The fluid can be drawn out.

  Referring again to FIG. 8, the operation of the second flow path 440 to separate and remove the volatile fission product 15 from the nuclear fuel body 40 is now described. In this embodiment, the heat removal channel 450 is deactivated, for example, by deactivating the pump 210/340. Subsequently, as the fifth pump 470 is activated, the volatile fission product 15 is drawn from the first flow pipe 460 and subsequently to the second flow pipe 480. As the volatile fission product 15 is pumped through the second flow pipe 480, fluid enters a fourth vessel 490 defined by a third fission product reservoir or holding tank 500. In this manner, the volatile fission product 15 is removed from the nuclear fuel body 40 and subsequently retained in the first fission product reservoir or holding tank 500 for subsequent off-site disposal. Or, if desired, the fission product 15 in the reservoir or holding tank 500 may remain in place. As desired, the fission product channel 440 and the heat removal channel 450 may be operated simultaneously or sequentially. Further, from the above description, the volatile fission product 15 is removed from the open cell hole 50 by vaporization due to the original property that the volatile fission product 15 volatilizes. You may move to the container 90 without the assistance of the pump 470. Therefore, the fission product channel 440 may or may not be provided with the pump 470. The fission product flow path 440 further includes one or more controllable shut-off valves (operated to the control unit 400 while being disposed in the flow path 440 to further separate the fourth container 490. A backflow prevention valve (not shown) may be used.

  9 and 10, a ninth embodiment nuclear reactor fuel assembly and system 510 is shown. In this ninth embodiment, the fuel assembly 510 includes a generally cylindrical storage 515 having a storage wall 516 for storing the nuclear fuel body 40 in place. Nuclear fuel integrity removal fluid having volatile fission products 15 entrained therein is drawn from the nuclear fuel body 40 to the fluid control subassembly 80 by the pump 340. A heat exchanger 355 may be provided on the pipe 220 to remove heat from the fluid. A potential advantage of using a cylindrical containment 515 is the usefulness of the cylindrical shape in forming a nuclear fuel profile. The term “nuclear fuel profile” is defined herein to mean the geometry of fissile material, nuclear source material, and / or neutron moderating material.

  Referring to FIG. 11, generally referred to as 520, a nuclear reactor fuel assembly and system of a tenth embodiment is shown. In this tenth embodiment, the fuel assembly 520 includes a generally spherical storage 525 having a storage wall 526 for storing the nuclear fuel body 40 in place. A potential advantage of using a spherical containment 525 is that the spherical shape reduces the amount of cracks or the amount of containment material 20 required. Another potential advantage of using a spherical storage 525 is the usefulness of the spherical shape in creating a nuclear fuel profile.

  Referring to FIG. 12, generally referred to as 530, an eleventh embodiment nuclear reactor fuel assembly and system is shown. In this eleventh embodiment, the fuel assembly 530 includes a generally hemispherical storage 540 having a storage wall 545 for storing the nuclear fuel body 40 in place. A potential advantage of using hemispherical containment 540 is that hemispherical containment 540 may increase the fuel assembly fill density in well 320 defined by vessel 310. Another potential advantage of using a hemispherical containment 540 is the usefulness of the hemispherical shape in forming a nuclear fuel profile.

  Referring to FIGS. 13 and 14, generally referred to as 550, the fuel assembly and system of the twelfth embodiment is shown. In this twelfth embodiment, the fuel assembly 550 includes a generally disk-shaped storage 560 having a storage wall 565 for storing the nuclear fuel body 40 in place. A potential advantage of using a disk shaped storage 560 is the usefulness of the disk shape in creating a nuclear fuel profile.

  Referring to FIGS. 15 and 16, generally referred to as 570, the fuel assembly and system of the thirteenth embodiment is shown. In this thirteenth embodiment, the fuel assembly 570 includes a generally polygonal storage 580 having a storage wall 585 for storing the nuclear fuel body 40 in place. . In this embodiment, the storage unit 580 may have a hexagonal shape in the cross section. A potential advantage of the hexagonal cross section of the containment 580 is that more fuel assemblies 570 are contained in the wells 320 of the container 310 than are allowed by many other geometric shapes of the fuel assembly. It is a point that can be done. Another potential advantage of using a hexagonal containment 580 is the usefulness of the hexagonal shape in forming a nuclear fuel profile.

  Referring to FIGS. 17 and 18, generally referred to as 590, the fuel assembly and system of the fourteenth embodiment is shown. In this fourteenth embodiment, the fuel assembly 590 includes a generally parallelepiped shaped containment 600 having a containment wall 605 for containing the nuclear fuel body 40 in place. A potential advantage of using a parallelepiped shaped containment 600 is that the parallelepiped shaped containment 600 may increase the fuel assembly fill density of the well 310 defined by the vessel 310. Another potential advantage of using a parallelepiped shaped containment 600 is the utility of the parallelepiped shape in forming a nuclear fuel profile.

  Referring to FIG. 19, generally referred to as 610, a nuclear reactor fuel assembly and system of a fifteenth embodiment is shown. In this embodiment, the nuclear fuel body 40 may include one or more nuclear fuel pellets 620 embedded in the field. The nuclear fuel pellet 620 may function as a high-density nuclear fuel element for increasing the effective density of the nuclear fuel body 40.

  Referring to FIG. 20, generally referred to as 625, a nuclear reactor fuel assembly and system of the sixteenth embodiment is shown. In this embodiment, the fluid control subassembly 80 is connected to the plurality of storage units 20.

Exemplary method
Exemplary methods associated with exemplary embodiments of nuclear fuel subassemblies for nuclear reactors 10, 100, 190, 230, 290, 420, 430, 510, 520, 530, 550, 570, 590, 610, and 625 Is shown here.

  With reference to FIGS. 21A-21CQ, an exemplary method of assembling a nuclear reactor fuel assembly and system is provided.

  Referring now to FIG. 21A, an exemplary method 630 for assembling a nuclear reactor fuel assembly begins at block 640. At block 650, a storage unit for storing the porous nuclear fuel body is prepared. At block 660, the fluid control subassembly is connected to the containment 20 to remove at least a portion of the volatile fission products at a location corresponding to the deflagration wave. The fluid control subassembly controls fluid flow in the region of the reactor close to (approximate) the location corresponding to the deflagration wave. The method 630 ends at block 670.

  Referring to FIG. 21B, an exemplary method 671 for assembling a nuclear reactor fuel assembly begins at block 672. In block 673, a storage unit for storing the nuclear fuel body is prepared. At block 674, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 675, the control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. The method 671 ends at block 676.

  Referring to FIG. 21C, an exemplary method 677 for assembling a nuclear reactor fuel assembly begins at block 680. In block 690, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 700, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 710, a control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. At block 715, a control unit is connected to provide controlled emission of volatile fission products depending on the power level in the traveling wave nuclear reactor. The method 677 ends at block 720.

  With reference to FIG. 21D, an exemplary method 730 of assembling a nuclear reactor fuel assembly begins at block 740. In block 750, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 760, the fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 770, a control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. At block 780, a control unit is connected to provide volatile fission product release control in response to the neutron number level in the traveling wave nuclear reactor. The method 730 ends at block 790.

  Referring to FIG. 21E, an exemplary method 800 for assembling a nuclear reactor fuel assembly begins at block 810. In block 820, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 830, the fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 840, a control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. At block 850, a control unit is connected to provide controlled release of volatile fission products in response to the fission product pressure level in the traveling wave nuclear reactor. The method 800 ends at block 860.

  Referring to FIG. 21F, an exemplary method 870 for assembling a nuclear reactor fuel assembly begins at block 880. In block 890, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 900, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 910, a control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. At block 920, a control unit is connected to provide controlled emission of volatile fission products in accordance with a process schedule for the traveling wave nuclear reactor. The method 870 ends at block 860.

  Referring to FIG. 21G, an exemplary method 940 for assembling a nuclear reactor fuel assembly begins at block 950. In block 960, a storage unit for storing the nuclear fuel body is prepared in the manner described above. At block 970, the fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 980, a control unit is connected to the fluid control subassembly to control the operation of the fluid control subassembly. At block 990, a control unit is connected to provide volatile fission product release control in response to the amount of nuclear reactor operation time. The method 940 ends at block 1000.

  Referring to FIG. 21H, an exemplary method 1010 for assembling a nuclear reactor fuel assembly begins at block 1020. In block 1030, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At block 1040, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1050, the storage is prepared to store a nuclear fuel body. The method 1010 ends at block 1060.

  With reference to FIG. 21I, an exemplary method 1070 for assembling a nuclear reactor fuel assembly begins at block 1080. In block 1090, a storage unit for storing the nuclear fuel body is prepared in the manner described above. At block 1100, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1110, a containment is prepared to store the fissile material forming the nuclear fuel body. The method 1070 ends at block 1120.

  Referring to FIG. 21J, an exemplary method 1130 for assembling a nuclear reactor fuel assembly begins at block 1140. In block 1150, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 1160, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. In block 1170, the containment unit is prepared to store the fissile material forming the nuclear fuel body. The method 1130 ends at block 1180.

  Referring to FIG. 21K, an exemplary method 1190 for assembling a nuclear reactor fuel assembly begins at block 1200. In block 1210, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At a block 1220, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission product as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1230, a containment unit is prepared to store the fissile material and the nuclear source material forming the nuclear fuel body. The method 1190 ends at block 1240.

  Referring to FIG. 21L, an exemplary method 1250 for assembling a nuclear reactor fuel assembly begins at block 1260. At block 1270, a storage unit for storing the nuclear fuel body is prepared in the manner described above. At block 1280, the fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 1290, the containment is prepared to allow controlled release of volatile fission products in response to power levels in the traveling wave nuclear reactor. The method 1250 ends at block 1300.

  Referring to FIG. 21M, an exemplary method 1310 for assembling a nuclear reactor fuel assembly begins at block 1320. In block 1330, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 1340, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1350, the containment is prepared to allow controlled emission of volatile fission products as a function of the neutron number level in the traveling wave nuclear reactor. The method 1310 ends at block 1360.

  Referring to FIG. 21N, an exemplary method 1370 for assembling a nuclear reactor fuel assembly begins at block 1380. At block 1390, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 1400, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1410, the containment is prepared to allow controlled release of volatile fission products in response to the pressure level of volatile fission products in the traveling wave nuclear reactor. The method 1370 ends at block 1420.

  Referring to FIG. 21O, an exemplary method 1430 for assembling a nuclear reactor fuel assembly begins at block 1440. In block 1450, a storage unit for storing the nuclear fuel body is prepared in the manner described above. At block 1460, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1470, the containment is prepared to allow controlled release of volatile fission products in response to a process schedule for the traveling wave nuclear reactor. The method 1430 ends at block 1480.

  Referring to FIG. 21P, an exemplary method 1490 for assembling a nuclear reactor fuel assembly begins at block 1500. In block 1510, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At block 1520, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1530, the containment is prepared to allow controlled release of volatile fission products in response to the continuous operating time of the traveling wave nuclear reactor. The method 1490 ends at block 1540.

  Referring to FIG. 21Q, an exemplary method 1550 for assembling a nuclear reactor fuel assembly begins at block 1560. In block 1570, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At a block 1580, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 1590, a containment is prepared to contain a porous nuclear fuel body in the form of a foam defining a plurality of pores. The method 1550 ends at block 1600.

  Referring to FIG. 21R, an exemplary method 1610 for assembling a nuclear reactor fuel assembly begins at block 1620. In block 1630, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At a block 1640, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 1650, a containment is provided to contain a nuclear fuel body defining a plurality of holes. The plurality of holes have a spatially non-uniform distribution. The method 1610 ends at block 1660.

  Referring to FIG. 21S, an exemplary method 1670 for assembling a nuclear reactor fuel assembly begins at block 1680. At block 1690, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 1700, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. In block 1710, a storage is provided for storing a nuclear fuel body having a plurality of channels. The plurality of holes have a spatially non-uniform distribution. The method 1670 ends at block 1720.

  Referring to FIG. 21T, an exemplary method 1730 for assembling a nuclear reactor fuel assembly begins at block 1740. At block 1750, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At a block 1760, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 1770, a containment is prepared to contain a porous nuclear fuel body having a plurality of particles and defining a plurality of channels between the plurality of particles. The method 1730 ends at block 1790.

  Referring to FIG. 21U, an exemplary method 1800 for assembling a nuclear reactor fuel assembly begins at block 1810. At block 1820, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At a block 1830, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 1840, a containment is prepared to contain a porous nuclear fuel body having a plurality of holes. The at least one hole has a predetermined structure that allows at least a portion of the volatile fission products to escape the nuclear fuel body within a predetermined reaction time. The method 1800 ends at block 1850.

  Referring to FIG. 21V, an exemplary method 1860 for assembling a nuclear reactor fuel assembly begins at block 1870. At block 1880, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At a block 1890, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. In block 1900, the containment has a plurality of holes for allowing at least a portion of the volatile fission products to escape within a predetermined reaction time that is between about 10 seconds and about 1,000 seconds. It is prepared to store a porous nuclear fuel body. The method 1860 ends at block 1910.

  Referring to FIG. 21W, an exemplary method 1920 for assembling a nuclear reactor fuel assembly begins at block 1930. In block 1940, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 1950, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 1960, the containment has a plurality of holes for allowing at least a portion of the volatile fission products to escape within a predetermined reaction time that is between about 10 seconds and about 1,000 seconds. A nuclear fuel assembly is prepared. The method 1920 ends at block 1970.

  Referring to FIG. 21X, an exemplary method 1971 for assembling a nuclear reactor fuel assembly begins at block 1972. In block 1973, a storage unit for storing the nuclear fuel body is prepared by the above-described method. At a block 1974, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. In block 1975, a containment is prepared to hermetically contain a porous nuclear fuel body having a cylindrical structure. The method 1971 ends at block 1976.

  Referring to FIG. 21Y, an exemplary method 1980 for assembling a nuclear reactor fuel assembly begins at block 1990. In block 2000, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At block 2010, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2020, a containment is prepared for hermetically storing a porous nuclear fuel body having a polygonal structure. The method 1980 ends at block 2030.

  Referring to FIG. 21Z, an exemplary method 2040 for assembling a nuclear reactor fuel assembly begins at block 2050. In block 2060, a storage unit for storing the nuclear fuel body is prepared in the manner described above. At block 2070, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2080, a containment is prepared to contain a porous nuclear fuel body having a plurality of holes for obtaining volatile fission products discharged by deflagration waves in a traveling wave nuclear reactor. The The method 2040 ends at block 2090.

  With reference to FIG. 21AA, an exemplary method 2100 for assembling a nuclear reactor fuel assembly begins at block 2110. In block 2120, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At block 2130, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2140, a containment is prepared to contain the porous nuclear fuel body having a plurality of holes for transporting volatile fission products through the porous nuclear fuel body. The method 2100 ends at block 2150.

  Referring to FIG. 21AB, an exemplary method 2160 for assembling a nuclear reactor fuel assembly begins at block 2170. In block 2180, a storage unit for storing a nuclear fuel body is prepared in the manner described above. At a block 2190, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission product as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2200, a reservoir is connected to the fluid control subassembly for receiving volatile fission products. The method 2160 ends at block 2210.

  Referring to FIG. 21AC, an exemplary method 2220 for assembling a nuclear reactor fuel assembly begins at block 2230. At block 2240, a storage unit is prepared for storing nuclear fuel bodies in the manner described above. At block 2250, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. In block 2260, the fluid control subassembly is connected to provide controlled release of volatile fission products depending on the location of the deflagration wave in the traveling wave nuclear reactor. The method 2220 ends at block 2270.

  Referring to FIG. 21AD, an exemplary method 2280 for assembling a nuclear reactor fuel assembly begins at block 2290. In block 2300, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 2310, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2320, the fissionable fuel assembly is configured to circulate a fission product removal fluid through the porous nuclear fuel body, and the fluid control subassembly is configured to remove the fission product through the porous nuclear fuel body. A fluid control subassembly is connected such that at least a portion of the volatile fission products are removed from the porous nuclear fuel body while circulating the fluid. The method 2280 ends at block 2330.

  Referring to FIG. 21AE, an exemplary method 2340 for assembling a nuclear reactor fuel assembly begins at block 2350. In block 2360, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At a block 2370, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2380, the fissionable fuel assembly is configured to circulate a fission product removal fluid through the porous nuclear fuel body, and the fluid control subassembly is configured to remove the fission product through the porous nuclear fuel body. A fluid control subassembly is connected such that at least a portion of the volatile fission products are removed from the porous nuclear fuel body while circulating the fluid. At block 2390, an inlet subassembly is prepared to supply a fission product removal fluid to the porous nuclear fuel body. The method 2340 ends at block 2400.

  Referring to FIG. 21AF, an exemplary method 2410 for assembling a nuclear reactor fuel assembly begins at block 2420. In block 2430, a storage unit for storing nuclear fuel bodies is prepared in the manner described above. At block 2440, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2450, the fissionable fuel assembly is configured to circulate a fission product removal fluid through the porous nuclear fuel body and the fluid control subassembly is configured to remove the fission product through the porous nuclear fuel body. A fluid control subassembly is connected such that at least a portion of the volatile fission products are removed from the porous nuclear fuel body while circulating the fluid. At block 2460, the inlet subassembly is prepared for removing fission product removal fluid from the porous nuclear fuel body. The method 2410 ends at block 2470.

  Referring to FIG. 21AG, an exemplary method 2480 for assembling a nuclear reactor fuel assembly begins at block 2490. In block 2500, a storage unit is prepared for storing a porous nuclear fuel body in the manner described above. At block 2510, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2520, the fissionable fuel assembly is configured to circulate a fission product removal fluid through the porous nuclear fuel body, and the fluid control subassembly is configured to remove the fission product through the porous nuclear fuel body. A fluid control subassembly is connected such that at least a portion of the volatile fission products are removed from the porous nuclear fuel body while circulating the fluid. At block 2530, a reservoir is prepared to receive a fission product removal fluid. The method 2480 ends at block 2540.

  Referring to FIG. 21AH, an exemplary method 2550 for assembling a nuclear reactor fuel assembly begins at block 2560. At block 2570, a storage unit is prepared for storing the porous nuclear fuel body in the manner described above. At a block 2580, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2590, the fissionable fuel assembly is configured to circulate a fission product removal fluid through the porous nuclear fuel body, and the fluid control subassembly is configured to remove the fission product through the porous nuclear fuel body. A fluid control subassembly is connected such that at least a portion of the volatile fission products are removed from the porous nuclear fuel body while circulating the fluid. In block 2600, a reservoir is connected to provide a fission product removal fluid. The method 2550 ends at block 2610.

  Referring to FIG. 21AI, an exemplary method 2620 for assembling a nuclear reactor fuel assembly begins at block 2630. In block 2640, a storage unit for storing the porous nuclear fuel body is prepared in the manner described above. At a block 2650, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2590, the fissile fuel assembly is configured to circulate a gaseous fluid through the porous nuclear fuel body and at least a portion of the volatile fission product is removed from the porous nuclear fuel. To the fluid control subassembly. The method 2620 ends at block 2670.

  Referring to FIG. 21AJ, an exemplary method 2680 for assembling a nuclear reactor fuel assembly begins at block 2690. In block 2700, a storage unit is prepared for storing a porous nuclear fuel body in the manner described above. At block 2710, a fluid control subassembly is connected to the enclosure to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2720, the fluid control subassembly is connected such that the fluid control subassembly is configured to circulate liquid through the porous nuclear fuel body. The method 2680 ends at block 2730.

  Referring to FIG. 21AK, an exemplary method 2740 for assembling a nuclear reactor fuel assembly begins at block 2750. At block 2760, a storage is provided for storing the porous nuclear fuel body in the manner described above. At a block 2770, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2780, the method includes connecting a pump. The method 2740 ends at block 2790.

  Referring to FIG. 21AL, an exemplary method 2800 for assembling a nuclear reactor fuel assembly begins at block 2810. At block 2820, a storage is provided for storing the porous nuclear fuel body in the manner described above. At a block 2830, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2840, a pump is integrally connected to the fluid control subassembly for circulating fluid between the fluid control subassembly and the porous nuclear fuel body. The method 2800 ends at block 2850.

  Referring to FIG. 21 AM, an exemplary method 2860 for assembling a nuclear reactor fuel assembly begins at block 2870. At block 2880, a storage is provided for storing the porous nuclear fuel body in the manner described above. At a block 2890, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At block 2900, the method includes connecting a valve. The method 2860 ends at block 2910.

  Referring to FIG. 21AN, an exemplary method 2920 for assembling a nuclear reactor fuel assembly begins at block 2930. In block 2940, a storage unit for storing the porous nuclear fuel body is prepared in the manner described above. At a block 2950, a fluid control subassembly is connected to the containment to remove at least a portion of the volatile fission products as described above. The fluid control subassembly controls fluid flow in the region of the reactor close to the location corresponding to the deflagration wave. At a block 2960, a valve is disposed between the containment and the fluid control subassembly to control fluid flow between the containment and the fluid control subassembly. The method 2920 ends at block 2970.

  Referring to FIG. 21AO, an exemplary method 2980 for assembling a nuclear reactor fuel assembly begins at block 2990. In block 3000, a storage is prepared for storing the porous nuclear fuel body in the manner described above. In order to remove at least a portion of the volatile fission products as described above, at block 3010, a fluid control subassembly is connected to the enclosure. The fluid control subassembly controls the flow of fluid in a region in the vicinity of the furnace corresponding to the deflagration wave (a region of the reactor close to a position corresponding to the deflagration wave). To control fluid flow between the containment and the fluid control subassembly, a valve is placed at block 3020 between the containment and the fluid control subassembly. At block 3030, a backflow prevention valve is placed between the containment and the fluid control subassembly. At block 3040, the method 2980 ends.

  With reference to FIG. 21AP, an exemplary method 3050 for assembling a nuclear reactor fuel assembly begins at block 3060. In block 3070, a storage unit is provided for storing the porous nuclear fuel body in the manner described above. In order to remove at least a portion of the volatile fission products as described above, at block 3080, a fluid control subassembly is connected to the enclosure. The fluid control subassembly controls fluid flow in the region near the furnace in response to deflagration waves. Method 3050 includes coupling a controllable brittle barrier at block 3090. At block 3100, the method 3050 ends.

  Referring to FIG. 21AQ, an exemplary method 3110 for assembling a nuclear reactor fuel assembly begins at block 3120. At block 3130, a storage is provided for storing the porous nuclear fuel body in the manner described above. In order to remove at least a portion of the volatile fission products as described above, at block 3140, a fluid control subassembly is connected to the enclosure. The fluid control subassembly controls fluid flow in the region near the furnace in response to deflagration waves. At block 3150, a controllable brittle barrier is placed between the containment and the fluid control subassembly. At block 3160, the method 3110 ends.

  Referring to FIG. 21AR, an exemplary method 3170 for assembling a nuclear reactor fuel assembly begins at block 3180. At block 3190, a storage is provided for storing the porous nuclear fuel body in the manner described above. In order to remove at least a portion of the volatile fission products as described above, at block 3200, a fluid control subassembly is connected to the enclosure. The fluid control subassembly controls fluid flow in the region near the furnace in response to deflagration waves. At block 3210, a controllable brittle barrier is placed between the containment and the fluid control subassembly. At block 3220, a destructible barrier at a predetermined pressure is placed between the containment and the fluid control subassembly. At block 3230, the method 3170 ends.

  Referring to FIG. 21AS, an exemplary method 3240 for assembling a nuclear reactor fuel assembly begins at block 3250. At block 3260, a storage is provided for storing the porous nuclear fuel body in the manner described above. In order to remove at least a portion of the volatile fission products as described above, at block 3270, a fluid control subassembly is connected to the enclosure. The fluid control subassembly controls fluid flow in the region near the furnace in response to deflagration waves. At block 3280, a controllable brittle barrier is placed between the containment and the fluid control subassembly. At a block 3290, a barrier that can be broken by operator action is placed between the containment and the fluid control subassembly. At block 3300, the method 3240 ends.

  Referring to FIG. 21AT, an exemplary method 3310 for assembling a nuclear reactor fuel assembly begins at block 3320. At block 3330, a storage is provided for storing the exothermic (heating) nuclear fuel assembly. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 3340, the fluid control subassembly is connected to the storage. A process for removing at least a portion of the volatile fission products from the pores of the nuclear fuel body and a process for removing at least a portion of the heat generated by the nuclear fuel body at a position corresponding to the deflagration wave of the traveling wave fission reactor; Is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3350, method 3310 ends.

  Referring to FIG. 21AU, an exemplary method 3360 for assembling a nuclear reactor fuel assembly begins at block 3370. At block 3380, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3390, a fluid control subassembly is connected to the storage. The fluid control subassembly is configured to remove at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and at least one of the heat generated by the nuclear fuel body at a location corresponding to the deflagration wave of the traveling wave fission reactor. The process of removing the part is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3400, the control unit is coupled to the fluid control subassembly. The control unit controls the operation of the fluid control subassembly. At block 3410, the method 3360 ends.

  With reference to FIG. 21AV, an exemplary method 3420 for assembling a nuclear reactor fuel assembly begins at block 3430. At block 3440, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 3450, the fluid control subassembly is connected to the storage. The fluid control subassembly is configured to remove at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and at least one of the heat generated by the nuclear fuel body at a location corresponding to the deflagration wave of the traveling wave fission reactor. The process of removing the part is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3460, a storage is prepared for storing the nuclear fuel body. At block 3470, the method 3420 ends.

  Referring to FIG. 21AW, an exemplary method 3480 for assembling a nuclear fission reactor fuel assembly begins at block 3490. At block 3500, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 3510, the fluid control subassembly is connected to the storage. The fluid control subassembly is configured to remove at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and at least one of the heat generated by the nuclear fuel body at a location corresponding to the deflagration wave of the traveling wave fission reactor. The process of removing the part is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3520, a containment is prepared to store the fissile material that forms the nuclear fuel body. At block 3530, the method 3480 ends.

  With reference to FIG. 21AX, an exemplary method 3540 of assembling a nuclear reactor fuel assembly begins at block 3550. At block 3560, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3570, the fluid control subassembly is connected to the storage. The fluid control subassembly is configured to remove at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and at least one of the heat generated by the nuclear fuel body at a location corresponding to the deflagration wave of the traveling wave fission reactor. The process of removing the part is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3580, a storage is prepared to store the nuclear source material that forms the nuclear fuel body. At block 3590, method 3540 ends.

  Referring to FIG. 21AY, an exemplary method 3600 for assembling a nuclear reactor fuel assembly begins at block 3610. At block 3620, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3630, the fluid control subassembly is connected to the storage. The fluid control subassembly is configured to remove at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and at least one of the heat generated by the nuclear fuel body at a location corresponding to the deflagration wave of the traveling wave fission reactor. The process of removing the part is controlled by controlling the flow of fluid in the region of the traveling wave fission reactor close to the position corresponding to the deflagration wave. At block 3640, a containment unit is prepared to store a mixture of fissile material and nuclear source material forming a nuclear fuel body. At block 3650, the method 3600 ends.

  Referring to FIG. 21AZ, an exemplary method 3660 for assembling a nuclear reactor fuel assembly begins at block 3670. At a block 3680, a storage is provided for storing the exothermic fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3690, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. In block 3700, the fluid control subassembly is connected such that volatile fission products can be released in a controlled manner depending on the location of the deflagration wave in the traveling wave fission reactor. At block 3710, method 3660 ends.

  Referring to FIG. 21BA, an exemplary method 3720 for assembling a nuclear reactor fuel assembly begins at block 3730. At block 3740, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3750, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 3760, the fluid control subassembly is connected such that volatile fission products can be released in a controlled manner in response to power levels in the traveling wave fission reactor. At block 3770, the method 3720 ends.

  With reference to FIG. 21BB, an exemplary method 3780 of assembling a nuclear reactor fuel assembly begins at block 3790. At block 3800, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 3810, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 3820, the fluid control subassembly is connected such that volatile fission products can be emitted in a controlled manner as a function of the level of neutrons in the traveling wave fission reactor. At block 3830, the method 3780 ends.

  With reference to FIG. 21BC, an exemplary method 3840 of assembling a nuclear reactor fuel assembly begins at block 3850. At a block 3860, a storage is provided for storing the exothermic fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3870, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 3880, the fluid control subassembly is connected such that volatile fission products can be released in a controlled manner in response to the pressure level of the volatile fission products in the traveling wave fission reactor. At block 3890, the method 3840 ends.

  With reference to FIG. 21BD, an exemplary method 3900 for assembling a nuclear reactor fuel assembly begins at block 3910. At block 3920, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3930, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 3940, the fluid control subassembly is connected such that the release of volatile fission products is controlled in response to a schedule for the traveling wave fission reactor. At block 3950, the method 3900 ends.

  Referring to FIG. 21BE, an exemplary method 3960 for assembling a nuclear reactor fuel assembly begins at block 3970. At block 3980, a storage unit is provided for storing a heating core fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 3990, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. In block 4000, the fluid control subassembly is connected such that the release of volatile fission products is controlled as a function of the time the traveling wave fission reactor operates. At block 4010, the method 3960 ends.

  Referring to FIG. 21BF, an exemplary method 4020 for assembling a nuclear reactor fuel assembly begins at block 4030. In block 4040, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4050, the fluid control subassembly is connected to the enclosure. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4060, a reservoir for receiving volatile fission products is coupled to the fluid control subassembly. At block 4070, method 4020 ends.

  With reference to FIG. 21BG, an exemplary method 4080 of assembling a nuclear reactor fuel assembly begins at block 4090. In block 4100, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4110, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4120, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates fission product removal fluid through the nuclear fuel body pores. In the meantime, the volatile fission products are linked so that at least some of them are removed from the pores of the nuclear fuel body. At block 4130, method 4080 ends.

  Referring to FIG. 21BH, an exemplary method 4140 for assembling a nuclear reactor fuel assembly begins at block 4150. At block 4160, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4170, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4175, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates fission product removal fluid through the nuclear fuel body pores. In the meantime, the volatile fission products are linked so that at least some of them are removed from the pores of the nuclear fuel body. In block 4180, an inlet subassembly is provided for supplying fission product removal fluid to the pores of the nuclear fuel body. At block 4190, the method 4140 ends.

  Referring to FIG. 21BI, an exemplary method 4200 for assembling a nuclear reactor fuel assembly begins at block 4210. At block 4220, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4230, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4240, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates fission product removal fluid through the nuclear fuel body pores. In the meantime, the volatile fission products are linked so that at least some of them are removed from the pores of the nuclear fuel body. At block 4250, an outlet subassembly is provided for removing fission product removal fluid from the pores of the nuclear fuel body. At block 4260, the method 4200 ends.

  Referring to FIG. 21BJ, an exemplary method 4270 for assembling a nuclear reactor fuel assembly begins at block 4280. At block 4290, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4300, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4310, a fluid control subassembly configured to circulate a fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates a heat removal fluid through the pores of the nuclear fuel body. It is connected so that at least a part of the generated heat of the nuclear fuel body is removed from the nuclear fuel body. At block 4320, the method 4270 ends.

  Referring to FIG. 21BK, an exemplary method 4330 of assembling a nuclear reactor fuel assembly begins at block 4340. At a block 4350, a storage unit is provided for storing a heating nuclear fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4360, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4370, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates heat removal fluid through the nuclear fuel body pores. It is connected so that at least a part of the generated heat of the nuclear fuel body is removed from the nuclear fuel body. At block 4380, a reservoir for receiving heat removal fluid is coupled to the fluid control subassembly. At block 4390, method 4330 ends.

  Referring to FIG. 21 BL, an exemplary method 4400 for assembling a nuclear reactor fuel assembly begins at block 4410. At block 4420, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4430, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4440, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates heat removal fluid through the nuclear fuel body pores. It is connected so that at least a part of the generated heat of the nuclear fuel body is removed from the nuclear fuel body. At a block 4450, a reservoir for supplying heat removal fluid is coupled to the fluid control subassembly. At block 4460, the method 4400 ends.

  With reference to FIG. 21BM, an exemplary method 4470 for assembling a nuclear reactor fuel assembly begins at block 4480. At block 4490, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4500, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4510, a fluid control subassembly configured to circulate fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates heat removal fluid through the nuclear fuel body pores. It is connected so that at least a part of the generated heat of the nuclear fuel body is removed from the nuclear fuel body. At block 4520, a heat sink is connected to the fluid control subassembly such that heat is transferred from the heat removal fluid to remove heat from the heat removal fluid. At block 4530, the method 4470 ends.

  Referring to FIG. 21BN, an exemplary method 4540 for assembling a nuclear reactor fuel assembly begins at block 4550. At block 4560, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4570, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4580, a fluid control subassembly configured to circulate a fission product removal fluid through the nuclear fuel body pores, wherein the fluid control subassembly circulates a heat removal fluid through the pores of the nuclear fuel body. It is connected so that at least a part of the generated heat of the nuclear fuel body is removed from the nuclear fuel body. At a block 4590, a heat exchanger is connected to the fluid control subassembly so that heat is transferred from the heat removal fluid to remove heat from the heat removal fluid. At block 4600, method 4540 ends.

  Referring to FIG. 21BO, an exemplary method 4610 for assembling a nuclear reactor fuel assembly begins at block 4620. At block 4630, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4640, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4650, the fluid control subassembly is coupled to simultaneously circulate the fission product removal fluid and the heat removal fluid. At block 4660, method 4610 ends.

  With reference to FIG. 21BP, an exemplary method 4670 for assembling a nuclear reactor fuel assembly begins at block 4680. At block 4690, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4700, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. In block 4710, the fluid control subassembly is coupled to sequentially circulate the fission product removal fluid and the heat removal fluid. At block 4720, the method 4670 ends.

  Referring to FIG. 21BQ, an exemplary method 4730 for assembling a nuclear reactor fuel assembly begins at block 4740. At a block 4750, a storage is provided for storing a heating nuclear fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4760, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 4770, a pump for pumping fluid from the fluid control subassembly to the pores of the nuclear fuel body is connected to and integrated with the fluid control subassembly. At block 4780, the method 4730 ends.

  Referring to FIG. 21BR, an exemplary method 4790 for assembling a nuclear reactor fuel assembly begins at block 4800. At block 4810, a storage unit is provided for storing a heating nuclear fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4820, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. The method includes connecting a pump at block 4830. At block 4840, the method 4790 ends.

  With reference to FIG. 21BS, an exemplary method 4850 of assembling a nuclear reactor fuel assembly begins at block 4860. At block 4870, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 4880, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 4890, a fission product reservoir that receives volatile fission products is coupled to the fluid control subassembly. At block 4900, method 4850 ends.

  Referring to FIG. 21BT, an exemplary method 4910 for assembling a nuclear reactor fuel assembly begins at block 4920. At block 4930, a storage unit is provided for storing a heating core fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 4940, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 4950, a plurality of first elements are coupled to allow the fluid control subassembly to circulate a fission product removal fluid through the pores of the nuclear fuel body. This removes at least a portion of the fission product from the pores of the nuclear fuel body while the fluid control subassembly is circulating the fission product removal fluid through the pores of the nuclear fuel body. At block 4960, method 4910 ends.

  Referring to FIG. 21BU, an exemplary method 4970 for assembling a nuclear reactor fuel assembly begins at block 4980. At a block 4990, a storage is provided for storing the exothermic fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 5000, the fluid control subassembly is connected to the enclosure. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5010, a plurality of first elements are coupled to allow the fluid control subassembly to circulate a fission product removal fluid through the pores of the nuclear fuel body. This removes at least some of the volatile fission products from the nuclear fuel body pores while the fluid control subassembly is circulating the fission product removal fluid through the pores of the nuclear fuel body. At block 5020, a plurality of second elements are coupled to allow the fluid control subassembly to circulate heat removal fluid through the pores of the nuclear fuel body. This removes at least a portion of the generated heat of the nuclear fuel body from the nuclear fuel body while the fluid control subassembly circulates the heat removal fluid through the pores of the nuclear fuel body. At block 5030, the method 4970 ends.

  Referring to FIG. 21BV, an exemplary method 5040 for assembling a nuclear reactor fuel assembly begins at block 5050. In block 5060, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 5070, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5080, a plurality of first elements are coupled to allow the fluid control subassembly to circulate fission product removal fluid through the pores of the nuclear fuel body. This removes at least some of the volatile fission products from the nuclear fuel body pores while the fluid control subassembly is circulating the fission product removal fluid through the pores of the nuclear fuel body. At block 5090, a plurality of second elements are coupled to allow the fluid control subassembly to circulate heat removal fluid through the pores of the nuclear fuel body. This removes at least a portion of the generated heat of the nuclear fuel body from the nuclear fuel body while the fluid control subassembly circulates the heat removal fluid through the pores of the nuclear fuel body. The method includes, in block 5100, the plurality of first elements and the plurality of elements such that one or more of the plurality of first elements and one or more of the plurality of second elements are the same. Operatively connecting the second element to the second element. At block 5110, method 5040 ends.

  Referring to FIG. 21BW, an exemplary method 5120 for assembling a nuclear reactor fuel assembly begins at block 5130. At block 5140, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 5150, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. The method includes, at block 5160, connecting a dual-purpose circuit that selectively removes volatile fission products and heat from the nuclear fuel. At block 5170, the method 5120 ends.

  With reference to FIG. 21BX, an exemplary method 5180 for assembling a nuclear reactor fuel assembly begins at block 5190. At block 5200, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 5210, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5220, the fluid control subassembly is coupled such that the fission fuel assembly is configured to circulate gas through the pores of the nuclear fuel body. At block 5230, the method 5180 ends.

  Referring to FIG. 21 BY, an exemplary method 5240 for assembling a nuclear reactor fuel assembly begins at block 5250. At block 5260, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 5270, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5280, the fluid control subassembly is coupled so that the fission fuel assembly is configured to circulate liquid through the pores of the nuclear fuel body. At block 5290, the method 5240 ends.

  Referring to FIG. 21BZ, an exemplary method 5300 for assembling a nuclear reactor fuel assembly begins at block 5310. At block 5320, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5330, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5340, a containment is prepared to contain a nuclear fuel body in the form of a foam in which a plurality of pores are clearly visible. At block 5350, the method 5300 ends.

  Referring to FIG. 21CA, an exemplary method 5360 for assembling a nuclear reactor fuel assembly begins at block 5370. At block 5380, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5390, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5400, a containment unit is prepared to contain a nuclear fuel body having a plurality of channels. At block 5410, the method 5360 ends.

  With reference to FIG. 21CB, an exemplary method 5420 for assembling a nuclear reactor fuel assembly begins at block 5430. At block 5440, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5450, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5460, a containment is prepared to contain a nuclear fuel body having a plurality of channels. At block 5470, a containment is prepared to contain a nuclear fuel body having a plurality of particles defining a plurality of channels. At block 5480, the method 5420 ends.

  Referring to FIG. 21CC, an exemplary method 5490 for assembling a nuclear reactor fuel assembly begins at block 5500. At block 5510, a storage unit is provided for storing a heating nuclear fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5520, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 5530, a containment is prepared to contain a nuclear fuel body that clearly shows a plurality of pores that are not spatially uniformly distributed. At block 5540, the method 5490 ends.

  With reference to FIG. 21CD, an exemplary method 5550 for assembling a nuclear reactor fuel assembly begins at block 5560. At a block 5570, a storage is provided for storing the exothermic fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5580, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 5590, a containment is provided to contain a nuclear fuel body having a plurality of pores to capture volatile fission products released by deflagration waves in a traveling wave fission reactor. At block 5600, the method 5550 ends.

  With reference to FIG. 21CE, an exemplary method 5610 for assembling a nuclear reactor fuel assembly begins at block 5620. At block 5630, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5640, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 5650, a containment is prepared to contain a nuclear fuel body having a plurality of pores. One or more of the plurality of pores are previously formed so as to allow at least a part of the volatile fission products to escape from the nuclear fuel body within a predetermined response time. At block 5660, method 5610 ends.

  With reference to FIG. 21CF, an exemplary method 5670 for assembling a nuclear reactor fuel assembly begins at block 5680. At block 5690, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5700, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5710, a containment is provided to contain a nuclear fuel body having a plurality of pores, thereby volatile fission products within a predetermined response time with a lower limit of about 10 seconds and an upper limit of about 1000 seconds. At least a part of the can be released from the nuclear fuel body. At block 5720, the method 5670 ends.

  With reference to FIG. 21CG, an exemplary method 5730 for assembling a nuclear reactor fuel assembly begins at block 5740. At a block 5750, a storage is provided for storing a heating nuclear fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5760, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. In block 5770, a containment is provided to contain a nuclear fuel body having a plurality of pores, whereby a volatile fission product within a predetermined response time having a lower limit of about 1 second and an upper limit of about 10,000 seconds. At least a part of the can be released from the nuclear fuel body. At block 5780, the method 5730 ends.

  Referring to FIG. 21CH, an exemplary method 5790 for assembling a nuclear reactor fuel assembly begins at block 5780. At block 5810, a storage unit is provided for storing a heating core fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5820, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5830, a containment is provided to contain a nuclear fuel body having a plurality of pores, whereby volatile fission products can be transported through the nuclear fuel body. At block 5840, the method 5790 ends.

  With reference to FIG. 21CI, an exemplary method 5850 of assembling a nuclear reactor fuel assembly begins at block 5860. At a block 5870, a storage unit is provided for storing a heating core fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5880, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5890, a containment is prepared for sealing the cylindrical nuclear fuel body. At block 5900, method 5850 ends.

  Referring to FIG. 21CJ, an exemplary method 5910 for assembling a nuclear reactor fuel assembly begins at block 5920. At a block 5930, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At a block 5940, a fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 5950, a containment is prepared to seal the polygonal nuclear fuel body. At block 5960, the method 5910 ends.

  With reference to FIG. 21CK, an exemplary method 5970 for assembling a nuclear reactor fuel assembly begins at block 5980. At a block 5990, a storage unit is provided for storing a heating core fuel body. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6000, the fluid control subassembly is connected to the enclosure. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. The method includes connecting the valves at block 6010. At block 6020, the method 5970 ends.

  Referring to FIG. 21CL, an exemplary method 6030 for assembling a nuclear reactor fuel assembly begins at block 6040. In block 6050, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6060, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 6070, a valve is inserted between the containment and the fluid control subassembly to control fluid flow between the containment and the fluid control subassembly. At block 6080, method 6030 ends.

  With reference to FIG. 21CM, an exemplary method 6090 for assembling a nuclear reactor fuel assembly begins at block 6100. At block 6110, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6120, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At block 6130, a valve is inserted between the containment and the fluid control subassembly to control fluid flow between the containment and the fluid control subassembly. The method includes inserting a backflow prevention valve at block 6140. At block 6150, method 6090 ends.

  With reference to FIG. 21CN, an exemplary method 6160 for assembling a nuclear reactor fuel assembly begins at block 6170. At block 6180, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6190, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. The method includes connecting a break-controllable barrier at block 6200. At block 6210, the method 6160 ends.

  Referring to FIG. 21CO, an exemplary method 6220 for assembling a nuclear reactor fuel assembly begins at block 6230. At block 6240, a storage is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6250, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 6260, a destructible controllable barrier is inserted between the containment and the fluid control subassembly. At block 6270, method 6220 ends.

  Referring to FIG. 21CP, an exemplary method 6280 for assembling a nuclear reactor fuel assembly begins at block 6290. At block 6300, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6310, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 6320, a fracture controllable barrier is inserted between the containment and the fluid control subassembly. The method includes the step of placing a break-controllable barrier at block 6330 that can be broken at a predetermined pressure. At block 6340, the method 6280 ends.

  Referring to FIG. 21CQ, an exemplary method 6350 for assembling a nuclear reactor fuel assembly begins at block 6360. At a block 6370, a storage unit is provided for storing the heating fuel element. The exothermic nuclear fuel body defines a plurality of open cell holes connected to each other. At block 6380, the fluid control subassembly is connected to the storage. The fluid control subassembly controls the process of removing at least a portion of the volatile fission products exiting the pores of the nuclear fuel body and the process of removing at least a portion of the heat generated by the nuclear fuel body as described above. To control. At a block 6390, a destructible controllable barrier is inserted between the containment and the fluid control subassembly. The method includes the step of placing a destructible controllable barrier in block 6400 that is destructible with a predetermined action. At block 6410, method 6350 ends.

  Referring to FIG. 22A, an exemplary method is provided for removing volatile fission products at multiple locations in response to deflagration waves. In this regard, the exemplary method 6420 for removing volatile fission products begins at block 6430. At a block 6440, fluid flow is controlled in a plurality of regions of the traveling wave fission reactor closest to a plurality of locations in response to the deflagration wave. This controls the removal of volatile fission products at multiple locations in response to deflagration waves in a traveling wave fission reactor. At block 6450, method 6420 ends.

  With reference to FIGS. 23A-23CK, an exemplary method for operating a nuclear reactor fuel assembly and system is provided.

  Referring to FIG. 23A, an exemplary method 6460 for operating a nuclear reactor fuel assembly begins at block 6470. At block 6480, a containment containing a porous nuclear fuel body with volatile fission products is used. At a block 6490, a fluid control subassembly coupled to the containment is used to remove at least a portion of volatile fission products from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At block 6500, method 6460 ends.

  Referring to FIG. 23B, an exemplary method 6510 for operating a nuclear reactor fuel assembly begins at block 6520. At block 6530, a containment is used that contains a porous nuclear fuel body having volatile fission products. At block 6540, at least a portion of the volatile fission product from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor is utilized using a fluid control subassembly coupled to the containment. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At a block 6550, the operation of the fluid control subassembly is controlled by activating a control unit connected to the fluid control subassembly. At block 6560, the method 6510 ends.

  Referring to FIG. 23C, an exemplary method 6570 for operating a nuclear reactor fuel assembly begins at block 6580. At block 6590, a containment is used that contains a porous nuclear fuel body having volatile fission products. At block 6600, a fluid control subassembly coupled to the containment is used to remove at least a portion of the volatile fission products from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At block 6610, the operation of the fluid control subassembly is controlled by activating a control unit connected to the fluid control subassembly. At block 6620, the control unit is activated to control the operation of the fluid control subassembly so that volatile fission products can be released in a controlled manner in response to power levels in the traveling wave fission reactor. At block 6630, the method 6570 ends.

  Referring to FIG. 23D, an exemplary method 6640 for operating a nuclear reactor fuel assembly begins at block 6650. At block 6660, a containment is used that contains a porous nuclear fuel body having volatile fission products. At block 6670, a fluid control subassembly coupled to the containment is used to remove at least a portion of the volatile fission products from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At a block 6680, the operation of the fluid control subassembly is controlled by activating a control unit connected to the fluid control subassembly. At block 6690, the control unit is activated to control the operation of the fluid control subassembly so that the volatile fission products can be released in a controlled manner in response to the neutron number level in the traveling wave fission reactor. . At block 6700, method 6640 ends.

  Referring to FIG. 23E, an exemplary method 6710 for operating a nuclear reactor fuel assembly begins at block 6720. At block 6730, a containment is used that contains a porous nuclear fuel body having volatile fission products. At block 6740, at least a portion of the volatile fission products from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor, using a fluid control subassembly coupled to the containment. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At a block 6750, operation of the fluid control subassembly is controlled by activating a control unit connected to the fluid control subassembly. In block 6760, the control unit is actuated to control the fluid so that the volatile fission product can be released in a controlled manner in response to the pressure level of the volatile fission product in the traveling wave fission reactor. Control the operation of the subassembly. At block 6770, method 6710 ends.

  Referring to FIG. 23F, an exemplary method 6780 for operating a nuclear reactor fuel assembly begins at block 6790. At block 6800, a containment containing a porous nuclear fuel body with volatile fission products is used. At block 6810, a fluid control subassembly coupled to the containment is used to remove at least a portion of volatile fission products from the porous nuclear fuel body at a plurality of locations in response to the deflagration wave of the traveling wave fission reactor. Control the process to be removed. This removal process is controlled by controlling the flow of fluid in a plurality of regions of the traveling wave fission reactor closest to a plurality of positions corresponding to the deflagration wave. At a block 6820, the operation of the fluid control subassembly is controlled by activating a control unit connected to the fluid control subassembly. At block 6830, the operation of the fluid control subassembly is controlled to activate the control unit so that the volatile fission products can be released in a controlled manner according to the process chart for the traveling wave fission reactor. At block 6840, the method 6780 ends.

  The method of operation 6850 of the nuclear fission reactor fuel assembly shown in FIG. 23G begins at block 6860. At a block 6870, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 6880, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 6890, the operation of the fluid control subassembly is controlled by the function of a control unit connected to the fluid control subassembly. At a block 6900, the operation of the fluid control subassembly is controlled by the function of a control unit connected to the fluid control subassembly such that the release of volatile fission products is controlled in response to the running time of the traveling wave fission reactor. Control. The method 6850 ends at block 6910.

  The method of operation 6920 of the nuclear fission reactor fuel assembly shown in FIG. 23H begins at block 6930. At a block 6940, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 6950, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 6960, the porous nuclear fuel body is stored in the storage unit. The method 6920 ends at block 6970.

  The method of operation 6980 for the nuclear fission reactor fuel assembly shown in FIG. 23I begins at block 6990. In block 7000, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 7010, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In block 7020, the fissile material forming the porous nuclear fuel body is stored in the storage unit. Method 6980 ends at block 7030.

  The method 7040 of operating a nuclear fission reactor fuel assembly shown in FIG. 23J begins at block 7050. At block 7060, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7070, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In block 7080, the nuclear raw material (fuel parent material) forming the porous nuclear fuel body is stored in the storage unit. The method 7040 ends at block 7090.

  The method of operation 7100 for a nuclear fission reactor fuel assembly shown in FIG. 23K begins at block 7110. At block 7120, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7130, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In block 7140, a mixture of fissile material and nuclear material forming the porous nuclear fuel body is stored in the storage unit. The method 7100 ends at block 7150.

  The method of operation 7160 for the nuclear fission reactor fuel assembly shown in FIG. 23L begins at block 7170. At block 7180, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7190, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to a deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At block 7200, the fluid control subassembly is used to control the release of volatile fission products as a function of the location of the deflagration wave in the traveling wave fission reactor. The method 7160 ends at block 7210.

  The method of operation 7220 of the nuclear fission reactor fuel assembly shown in FIG. 23M begins at block 7230. At a block 7240, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 7250, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to a deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At block 7260, the porous nuclear fuel body is stored in the storage in the form of bubbles having a plurality of bubbles. The method 7220 ends at block 7270.

  The method of operation 7280 of the nuclear fission reactor fuel assembly shown in FIG. 23N begins at block 7290. At block 7300, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 7310, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to deflagration waves of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In a block 7320, a porous nuclear fuel body having a plurality of pores spatially non-uniformly distributed is stored in the storage unit. The method 7280 ends at block 7330.

  The operation method 7340 of the nuclear fission reactor fuel assembly shown in FIG. 23O begins at block 7350. At block 7360, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7370, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In a block 7380, a porous nuclear fuel body having a plurality of passages (channels) is stored in the storage unit. The method 7340 ends at block 7390.

  The method of operation 7400 for a nuclear fission reactor fuel assembly shown in FIG. 23P begins at block 7410. At a block 7420, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7430, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. In a block 7440, a porous nuclear fuel body having a plurality of passages (channels) is stored in the storage unit. In block 7450, a porous nuclear fuel body having a plurality of passages (channels) is stored in the storage unit. At block 7450, the storage unit is used to store a porous nuclear fuel body having a plurality of small pieces and having a plurality of passages (channels) formed between the small pieces. The method 7400 ends at block 7460.

  The method of operating a nuclear fission reactor fuel assembly 7470 shown in FIG. 23Q begins at block 7480. At a block 7490, a containment is used to store a porous nuclear fuel body having volatile fission products. In block 7500, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7510, a plurality of pores are provided and at least some of the pores are arranged such that at least some of the volatile fission products can escape from the porous nuclear fuel body within a predetermined response time. The porous nuclear fuel body is stored in the storage unit. The method 7470 ends at block 7520.

  The method of operating the nuclear fission reactor fuel assembly 7530 shown in FIG. 23R begins at block 7540. At a block 7550, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7560, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7570, the porous nuclear fuel body having a plurality of pores is subjected to a predetermined response time in which at least a portion of the volatile fission product is set within a range of about 10 seconds to about 1000 seconds from the porous nuclear fuel body. It is stored in the storage unit so that it can escape inside. The method 7530 ends at block 7580.

  The method of operating a nuclear fission reactor fuel assembly 7590 shown in FIG. 23S begins at block 7600. At block 7610, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7620, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7630, the porous nuclear fuel body having a plurality of pores is subjected to a predetermined response time in which at least a portion of the volatile fission product is set within a range of about 1 second to about 10,000 seconds from the porous nuclear fuel body. It is stored in the storage unit so that it can escape inside. The method 7590 ends at block 7640.

  The method of operation 7650 for the nuclear fission reactor fuel assembly shown in FIG. 23T begins at block 7560. At a block 7670, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7680, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7690, a porous nuclear fuel body having a cylindrical geometry is sealed in the containment. The method 7650 ends at block 7700.

  The method of operation 7710 for a nuclear fission reactor fuel assembly shown in FIG. 23U begins at block 7720. At a block 7730, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7740, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7750, a porous nuclear fuel body having a polygonal geometry is sealed in the containment. The method 7710 ends at block 7760.

  The method of operation 7770 of the nuclear fission reactor fuel assembly shown in FIG. 23V begins at block 7780. At a block 7790, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7800, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7810, a porous nuclear fuel body having a plurality of pores for capturing volatile fission products released by deflagration waves in a traveling wave fission reactor is sealed in the containment. The method 7770 ends at block 7820.

  The method of operation 7830 of the nuclear fission reactor fuel assembly shown in FIG. 23W begins at block 7840. At a block 7850, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7860, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to a deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7870, a porous nuclear fuel body having a plurality of pores for transporting volatile fission products through the porous nuclear fuel body is sealed to the containment. The method 7830 ends at block 7880.

  The method of operation 7890 for the nuclear fission reactor fuel assembly shown in FIG. 23X begins at block 7900. At block 7910, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7920, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7930, volatile fission products are contained in a reservoir connected to the fluid control subassembly. The method 7890 ends at block 7940.

  The method of operation 7950 for the fission reactor fuel assembly shown in FIG. 23Y begins at block 7960. At a block 7970, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 7980, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 7990, a fission product removal fluid is circulated through the porous nuclear fuel body to remove at least a portion of the volatile fission products from the porous nuclear fuel body using a fluid control subassembly. . The method 7950 ends at block 8000.

  The method of operation 8010 for a nuclear fission reactor fuel assembly shown in FIG. 23Z begins at block 8020. At block 8030, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8040, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At block 8050, a fission product removal fluid is circulated through the porous nuclear fuel body to remove at least a portion of the volatile fission products from the porous nuclear fuel body using a fluid control subassembly. . At a block 8060, fission product removal fluid is supplied to the porous nuclear fuel body using an inlet subassembly. The method 8010 ends at block 8070.

  The method 8080 of operating a nuclear fission reactor fuel assembly shown in FIG. 23AA begins at block 8090. In block 8100, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8110, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8120, the fluid control subassembly is used to circulate a fission product removal fluid through the porous nuclear fuel body to remove at least a portion of the volatile fission products from the porous nuclear fuel body. . At a block 8130, a fission product removal fluid is discharged from the porous nuclear fuel body using an outlet subassembly. The method 8080 ends at block 8140.

  The method of operation 8150 of the nuclear fission reactor fuel assembly shown in FIG. 23AB begins at block 8160. At block 8170, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8180, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8190, the fluid control subassembly is used to circulate a fission product removal fluid through the porous nuclear fuel body to remove at least a portion of the volatile fission products from the porous nuclear fuel body. . At a block 8200, a fission product removal fluid is contained in a reservoir connected to the fluid control subassembly. The method 8080 ends at block 8140.

  The method of operation 8220 of the nuclear fission reactor fuel assembly shown in FIG. 23AC begins at block 8230. At block 8240, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8250, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8260, the fluid control subassembly is used to circulate a fission product removal fluid through the porous nuclear fuel body to remove at least a portion of the volatile fission products from the porous nuclear fuel body. . At a block 8270, fission product removal fluid is provided from a reservoir connected to the fluid control subassembly. The method 8220 ends at block 8280.

  The operation method 8290 of the nuclear fission reactor fuel assembly shown in FIG. 23AD begins at block 8300. At block 8310, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8320, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At block 8330, a fluid control subassembly is used to form a nuclear fission fuel assembly to circulate gas through the pores of the porous nuclear fuel body. The method 8290 ends at block 8340.

  The method of operation 8350 of the nuclear fission reactor fuel assembly shown in FIG. 23AE begins at block 8360. At a block 8370, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8380, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8390, a fission fuel assembly is formed using a fluid control subassembly to circulate liquid through the pores of the porous nuclear fuel body. The method 8350 ends at block 8400.

  The operation method 8410 of the nuclear fission reactor fuel assembly shown in FIG. 23AF begins at block 8420. At a block 8430, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8440, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8450, the pump is operated. The method 8410 ends at block 8400.

  The method of operation 8470 of the nuclear fission reactor fuel assembly shown in FIG. 23AG begins at block 8480. At a block 8490, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8500, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8510, fluid is circulated between the fluid control assembly and the porous nuclear fuel body by operating a pump integrally connected to the fluid control subassembly. The method 8470 ends at block 8520.

  The method of operating the nuclear fission reactor fuel assembly 8530 shown in FIG. 23AH begins at block 8540. At a block 8550, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8560, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8570, the valve is operated. The method 8530 ends at block 8580.

  The method of operating a nuclear fission reactor fuel assembly 8590 shown in FIG. 23AI begins at block 8600. At block 8610, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8620, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8630, fluid flow between the containment and the fluid control subassembly is controlled by manipulating a valve inserted between the containment and the fluid control subassembly. The method 8590 ends at block 8640.

  The method of operation 8650 for the nuclear fission reactor fuel assembly shown in FIG. 23AJ begins at block 8660. At a block 8670, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8680, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8690, fluid flow between the containment and the fluid control subassembly is controlled by operating a valve inserted between the containment and the fluid control subassembly. At a block 8700, a check valve is used to control fluid flow between the containment and the fluid control subassembly. The method 8650 ends at block 8710.

  The method of operation 8720 of the nuclear fission reactor fuel assembly shown in FIG. 23AK begins at block 8730. At a block 8740, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8750, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. At a block 8760, a controllable brittle barrier is used. The method 8720 ends at block 8770.

  The operation method 8780 of the nuclear fission reactor fuel assembly shown in FIG. 23AL begins at block 8790. At block 8800, a containment is used to store a porous nuclear fuel body having volatile fission products. At block 8810, fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. Block 8820 uses a controllable brittle barrier inserted between the containment and the fluid control subassembly. The method 8780 ends at block 8830.

  The method 8840 for operating a nuclear fission reactor fuel assembly shown in FIG. 23AM begins at block 8850. At a block 8860, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8870, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to a deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. Block 8880 uses a controllable brittle barrier inserted between the containment and the fluid control subassembly. At a block 8890, a barrier that can be broken at a predetermined pressure is used. The method 8840 ends at block 8900.

  The method of operation 8910 for a nuclear fission reactor fuel assembly shown in FIG. 23AN begins at block 8920. At a block 8930, a containment is used to store a porous nuclear fuel body having volatile fission products. At a block 8940, fluid flow in a plurality of regions of the traveling wave fission reactor adjacent to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor using a fluid control subassembly connected to the containment. By controlling at least a part of the volatile fission products from the porous nuclear fuel body at the plurality of positions corresponding to the deflagration wave. Block 8950 uses a controllable brittle barrier inserted between the containment and the fluid control subassembly. At a block 8960, a barrier that can be destroyed by operator manipulation is used. The method 8910 ends at block 8970.

  The method 8980 for operating a nuclear fission reactor fuel assembly shown in FIG. 23AO begins at block 8990. At block 9000, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open-cell pores. Block 9010 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. Method 8980 ends at block 9020.

  The method 9030 of operating a nuclear fission reactor fuel assembly shown in FIG. 23AP begins at block 9040. At a block 9050, a storage unit is used to store a pyronuclear fuel body that defines a plurality of interconnected open cell holes. Block 9060 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9070, the operation of the fluid control subassembly is controlled by manipulating a control unit connected to the fluid control subassembly. The method 9030 ends at block 9080.

  The method 9090 of operating a nuclear fission reactor fuel assembly shown in FIG. 23AQ begins at block 9100. At a block 9110, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9120 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. In block 9130, the nuclear fuel body is stored in the storage unit. The method 9090 ends at block 9140.

  The operation method 9150 of the nuclear fission reactor fuel assembly shown in FIG. 23AR begins at block 9160. At a block 9170, a storage unit is used to store a pyronuclear fuel body that defines a plurality of interconnected open cell holes. Block 9180 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9190, the fissile material forming the nuclear fuel body is stored in the storage unit. The method 9090 ends at block 9140.

  The method of operation 9210 of the nuclear fission reactor fuel assembly shown in FIG. 23AS begins at block 9220. At a block 9230, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9240 uses a fluid control subassembly connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to deflagration waves of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. In block 9250, the nuclear source material forming the nuclear fuel body is stored in the storage unit. The method 9210 ends at block 9260.

  The method of operation 9270 of the nuclear fission reactor fuel assembly shown in FIG. 23AT begins at block 9280. At a block 9290, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9300 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. In block 9310, a mixture of the fissile material and the nuclear material forming the nuclear fuel body is stored in the storage unit. The method 9270 ends at block 9320.

  The method of operating a nuclear fission reactor fuel assembly 9330 shown in FIG. 23AU begins at block 9340. At a block 9350, a storage unit is used to store a pyronuclear fuel body that defines a plurality of interconnected open cell holes. Block 9360 uses a fluid control subassembly connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9370, the fluid control subassembly is used to perform controlled release of volatile fission products as a function of the location of the deflagration wave in the traveling wave fission reactor. The method 9330 ends at block 9380.

  The method of operation 9390 of the nuclear fission reactor fuel assembly shown in FIG. 23AV begins at block 9400. At block 9410, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9420 uses the fluid control subassembly connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9430, the fluid control subassembly is used to perform controlled release of volatile fission products as a function of the power level of the traveling wave fission reactor. The method 9390 ends at block 9440.

  The method of operation 9450 of the nuclear fission reactor fuel assembly shown in FIG. 23AW begins at block 9460. At a block 9470, a storage unit is used to store a pyronuclear fuel body that defines a plurality of interconnected open cell holes. Block 9480 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9490, the fluid control subassembly is used to perform controlled release of volatile fission products in response to a neutron population level in a traveling wave fission reactor. The method 9450 ends at block 9500.

  The fission reactor fuel assembly operating method 9510 shown in FIG. 23AX begins at block 9520. At a block 9530, a storage unit is used that stores a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9540 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9550, the fluid control subassembly is used to perform controlled release of volatile fission products in response to the pressure level of volatile fission products in a traveling wave fission reactor. The method 9510 ends at block 9560.

  The method of operation 9570 of the nuclear fission reactor fuel assembly shown in FIG. 23AY begins at block 9580. At a block 9590, a storage unit is used that stores a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9600 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At block 9610, the fluid control subassembly is used to perform controlled release of volatile fission products according to the traveling wave fission reactor time schedule. The method 9510 ends at block 9560.

  The method of operation 9630 of the nuclear fission reactor fuel assembly shown in FIG. 23AZ begins at block 9640. At a block 9650, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9660 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to deflagration waves of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9670, the fluid control subassembly is used to perform controlled release of volatile fission products as a function of the cumulative operating time of the traveling wave fission reactor. The method 9630 ends at block 9680.

  The method of operation 9690 of the nuclear fission reactor fuel assembly shown in FIG. 23BA begins at block 9700. At a block 9710, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9720 uses a fluid control subassembly connected to the containment to direct fluid flow in a plurality of regions of the traveling wave fission reactor close to a plurality of locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9730, volatile fission products are contained in a reservoir connected to the fluid control subassembly. The method 9690 ends at block 9740.

  The method of operation 9750 of the nuclear fission reactor fuel assembly shown in FIG. 23BB begins at block 9760. At a block 9770, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9780 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9790, a fission product removal is passed through the pores of the porous nuclear fuel body to remove at least a portion of the volatile fission products from the pores of the porous nuclear fuel body using a fluid control subassembly. Circulate the fluid. Volatile fission products are contained in a reservoir connected to the fluid control subassembly. The method 9750 ends at block 9800.

  The method of operation 9810 of the nuclear fission reactor fuel assembly shown in FIG. 23BC begins at block 9820. At a block 9830, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9840 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9850, a fission fuel assembly is formed using a fluid control subassembly to supply and circulate fission product removal fluid from an inlet subassembly to a hole in the nuclear fuel body. The method 9810 ends at block 9860.

  The method 9870 of operating a nuclear fission reactor fuel assembly shown in FIG. 23BD begins at block 9880. At a block 9890, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9900 uses a fluid control subassembly connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to deflagration waves of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9910, a fission product removal fluid is circulated using a fluid control subassembly to form a fission fuel assembly to remove fission products from a hole in the nuclear fuel body via an outlet subassembly. . The method 9870 ends at block 9920.

  The method of operation 9390 of the nuclear fission reactor fuel assembly shown in FIG. 23BE begins at block 9940. At a block 9950, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 9960 uses the fluid control subassembly connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 9970, at least a portion of the heat generated by the nuclear fuel body is circulated through a hole in the nuclear fuel body by circulating a heat removal fluid through a hole in the nuclear fuel body using a fluid control subassembly. A fission fuel assembly is formed to be removed from. The method 9830 ends at block 9980.

  The method of operation 9990 of the nuclear fission reactor fuel assembly shown in FIG. 23BF begins at block 10000. In block 10010, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 10020 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor close to multiple locations corresponding to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. In block 10030, at least a portion of the heat generated by the nuclear fuel body is removed from the nuclear fuel body by circulating a heat removal fluid through the holes of the nuclear fuel body using a fluid control subassembly. Forming a fission fuel assembly; At block 10040, the heat removal fluid is contained in a reservoir connected to the fluid control subassembly. The method 9990 ends at block 10050.

  The method of operation 10060 of the nuclear fission reactor fuel assembly shown in FIG. At a block 10080, a storage unit is used that stores a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 10090 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor close to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 10100, the fluid control subassembly is used to circulate heat removal fluid through the holes in the nuclear fuel body to remove at least a portion of the heat generated by the nuclear fuel body from the nuclear fuel body. Forming a fission fuel assembly; At a block 10110, heat removal fluid is provided from a reservoir connected to the fluid control subassembly. The method 10060 ends at block 10120.

  The method 10130 for operating a nuclear fission reactor fuel assembly shown in FIG. 23BH begins at block 10140. At a block 10150, a storage unit is used to store a pyrogenic fuel body that defines a plurality of interconnected open cell holes. Block 10160 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At block 10170, at least a portion of the heat generated by the nuclear fuel body is removed from the nuclear fuel body by circulating a heat removal fluid through the holes in the nuclear fuel body using a fluid control subassembly. Forming a fission fuel assembly; At block 10180, heat is removed from the heat removal fluid by using a heat sink connected to the fluid control subassembly for heat exchange with the heat removal fluid. The method 10130 ends at block 10190.

  The fission reactor fuel assembly operating method 10200 shown in FIG. 23BI begins at block 10210. At a block 10220, a storage unit is used to store a pyronuclear fuel body that defines a plurality of interconnected open cell holes. Block 10230 uses fluid control subassemblies connected to the containment to direct fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations in response to the deflagration wave of the traveling wave fission reactor. By controlling, at the plurality of positions corresponding to the deflagration wave, the process of removing at least a part of the volatile fission product from the hole of the nuclear fuel body is controlled, and the heat generated by the nuclear fuel body is controlled. Control processing to remove at least a portion. At a block 10240, at least a portion of the heat generated by the nuclear fuel body is removed from the nuclear fuel body by circulating a heat removal fluid through the holes in the nuclear fuel body using a fluid control subassembly. Forming a fission fuel assembly; At a block 10250, heat is removed from the heat removal fluid by using a heat exchanger connected to the fluid control subassembly for heat exchange with the heat removal fluid. Method 10200 ends at block 10260.

  Referring to FIG. 23BJ, a method for operating a nuclear fission reactor fuel assembly 10270 begins at block 10280. At block 10290, an enclosure is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10300, using a fluid control subassembly connected to the containment to control fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10310, a fluid control subassembly is used to simultaneously circulate the fission product removal fluid and the heat removal fluid. The method 10270 ends at block 10311.

  Referring to FIG. 23BK, a method for operating a nuclear fission reactor fuel assembly 10312 begins at block 10313. In block 10314, a storage unit for storing the heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10315, using a fluid control subassembly connected to the containment to control fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations corresponding to deflagration waves Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 10316, the fluid control subassembly is used to sequentially cycle the fission product removal fluid and the heat removal fluid. The method 10312 ends at block 10317.

  Referring to FIG. 23BL, the method 10318 of operating a nuclear fission reactor fuel assembly begins at block 10319. At a block 10320, a storage unit for storing the heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10330, controlling fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 10340, the method includes operating a pump. The method 10318 ends at block 10350.

  Referring to FIG. 23BM, a method 10360 of operating a nuclear fission reactor fuel assembly begins at block 10370. At a block 10380, a storage unit for storing the heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10390, controlling fluid flow in multiple regions of the traveling wave fission reactor adjacent to multiple locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 10400, fluid is introduced between the fluid control subassembly and the nuclear fuel body holes by operating a pump integrally coupled to the fluid control subassembly. The method 10360 ends at block 10410.

  Referring to FIG. 23BN, a method for operating a nuclear fission reactor fuel assembly 10420 begins at block 10430. At a block 10440, a storage unit for storing a heating core fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 10450, a fluid control subassembly connected to the containment is used to control fluid flow in regions of the traveling wave fission reactor that are proximate to locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10460, a plurality of first elements connected to the fluid control subassembly are used to allow the fluid control subassembly to circulate a fission product removal fluid through a hole in the nuclear fuel body. A fission product removal fluid is supplied to the fluid control subassembly. This allows at least a portion of the volatile fission products to be captured by the nuclear fuel body holes while the fluid control subassembly circulates the fission product removal fluid through the nuclear fuel body holes. Removed from the hole. The method 10420 ends at block 10470.

  Referring to FIG. 23BO, a method 10480 of operating a nuclear fission reactor fuel assembly begins at block 10490. In block 10500, a storage unit is used to store an exothermic fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10510, controlling fluid flow in multiple regions of the traveling wave fission reactor proximate to multiple locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10520, a plurality of first elements connected to the fluid control subassembly are used to allow the fluid control subassembly to circulate a fission product removal fluid through a hole in the nuclear fuel body. A fission product removal fluid is supplied to the fluid control subassembly. This allows at least a portion of the volatile fission products to be captured by the nuclear fuel body holes while the fluid control subassembly circulates the fission product removal fluid through the nuclear fuel body holes. Removed from the hole. At a block 10530, heat removal using a plurality of second elements connected to the fluid control subassembly so that the fluid control subassembly can circulate heat removal fluid through the holes in the nuclear fuel body. Supply fluid to the fluid control subassembly. This removes at least a portion of the heat generated by the nuclear fuel body from the holes in the nuclear fuel body while the fluid control subassembly circulates the heat removal fluid through the holes in the nuclear fuel body. The method 10480 ends at block 10540.

  Referring to FIG. 23BP, a method of operating a fission reactor fuel assembly 10550 begins at block 10560. At a block 10570, a storage unit is used to store an exothermic fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 10580, the fluid control subassembly connected to the containment is used to control fluid flow in regions of the traveling wave fission reactor that are proximate to locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10590, a plurality of first elements connected to the fluid control subassembly are used to allow the fluid control subassembly to circulate a fission product removal fluid through a hole in the nuclear fuel body. A fission product removal fluid is supplied to the fluid control subassembly. This allows at least a portion of the volatile fission products to be captured by the nuclear fuel body holes while the fluid control subassembly circulates the fission product removal fluid through the nuclear fuel body holes. Removed from the hole. At block 10600, heat removal is performed using a plurality of second elements connected to the fluid control subassembly so that the fluid control subassembly can circulate heat removal fluid through the holes in the nuclear fuel body. Supply fluid to the fluid control subassembly. This removes at least a portion of the heat generated by the nuclear fuel body from the holes in the nuclear fuel body while the fluid control subassembly circulates the heat removal fluid through the holes in the nuclear fuel body. In block 10610, the first element and the second element are used such that at least one of the first elements and at least one of the second elements coincide. The method 10550 ends at block 10620.

  Referring to FIG. 23BQ, a method 10630 of operating a nuclear fission reactor fuel assembly begins at block 10640. At a block 10650, a storage unit is used to store an exothermic fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10660, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10670, a dual-purpose circuit connected to the containment is used to selectively remove volatile fission products and heat from the nuclear fuel body. The method 10630 ends at block 10680.

  Referring to FIG. 23BR, a method of operating a nuclear fission reactor fuel assembly 10690 begins at block 10700. At a block 10710, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 10720, the fluid control subassembly connected to the containment is used to control fluid flow in multiple regions of the traveling wave fission reactor in proximity to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10730, a fluid control subassembly is used to circulate gas through the holes in the nuclear fuel body. The method 10690 ends at block 10740.

  Referring to FIG. 23BS, a method 10750 of operating a nuclear fission reactor fuel assembly begins at block 10760. At a block 10770, a storage unit for storing a heating core fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10780, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10790, a fluid control subassembly is used to circulate liquid through the holes in the nuclear fuel body. The method 10750 ends at block 10800.

  Referring to FIG. 23BT, a method of operating a nuclear fission reactor fuel assembly 10810 begins at block 10820. At a block 10830, a storage unit is used to store an exothermic fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 10840, controlling fluid flow in multiple regions of the traveling wave fission reactor proximate to multiple locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10850, the containment is used to store the nuclear fuel body in the form of a foam that defines a plurality of holes. The method 10810 ends at block 10860.

  Referring to FIG. 23BU, a method 10870 for operating a nuclear fission reactor fuel assembly begins at block 10880. At a block 10890, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 10900, a fluid control subassembly connected to the containment is used to control fluid flow in multiple regions of the traveling wave fission reactor that are proximate to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 10910, the storage is used to store a nuclear fuel body having a plurality of channels. The method 10870 ends at block 10920.

  Referring to FIG. 23BV, a method 10930 for operating a nuclear fission reactor fuel assembly begins at block 10940. At a block 10950, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 10960, using a fluid control subassembly connected to the containment to control fluid flow in multiple regions of the traveling wave fission reactor proximate to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 10970, the storage is used to store a nuclear fuel body having a plurality of channels. At a block 10980, the storage is used to store a nuclear fuel body having a plurality of particles and defining a plurality of channels between the particles. Method 10930 ends at block 10990.

  Referring to FIG. 23BW, a method 11000 for operating a nuclear fission reactor fuel assembly begins at block 11010. In block 11020, a storage unit for storing the heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11030, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 11040, the storage is used to store a nuclear fuel body that defines a plurality of holes. The plurality of holes have a spatially non-uniform distribution. The method 11000 ends at block 11050.

  Referring to FIG. 23BX, a method 11060 of operating a nuclear fission reactor fuel assembly begins at block 11070. At a block 11080, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11090, controlling fluid flow in multiple regions of the traveling wave fission reactor proximate to multiple locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 11100, the containment is used to store a nuclear fuel body having a plurality of holes for capturing volatile fission products emitted by deflagration waves in a traveling wave fission reactor. The method 11060 ends at block 11110.

  Referring to FIG. 23BY, the method of operation 11120 of the nuclear fission reactor fuel assembly begins at block 11130. At block 11140, a storage unit for storing the heating fuel element is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11150, the fluid control subassembly connected to the containment is used to control fluid flow in regions of the traveling wave fission reactor that are proximate to locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 11160, the storage is used to store a nuclear fuel body having a plurality of holes. The one or more holes are of a predetermined structure to allow at least a portion of the volatile fission products to escape from the nuclear fuel body within a predetermined response time. The method 11120 ends at block 11170.

  Referring to FIG. 23BZ, a method for operating a nuclear fission reactor fuel assembly 11180 begins at block 11190. At a block 11200, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11210, controlling fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11220, having a plurality of holes to allow at least a portion of the volatile fission products to escape from the nuclear fuel body within a predetermined response time between about 10 seconds and about 1,000 seconds. The storage unit is used to store the nuclear fuel body. The method 11180 ends at block 11230.

  Referring to FIG. 23CA, a method for operating a nuclear fission reactor fuel assembly 11240 begins at block 11250. At a block 11260, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11270, the fluid control subassembly connected to the containment is used to control fluid flow in regions of the traveling wave fission reactor that are proximate to locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11280, a plurality of holes are provided to allow at least a portion of the volatile fission products to escape from the nuclear fuel body within a predetermined response time between about 1 second and about 10,000 seconds. The storage unit is used to store the nuclear fuel body. The method 11240 ends at block 11290.

  Referring to FIG. 23 CB, a method 11300 of operating a nuclear fission reactor fuel assembly begins at block 11310. At a block 11320, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11330, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11340, the containment is used to store a nuclear fuel body having a plurality of holes for transporting volatile fission products through the nuclear fuel body. The method 11300 ends at block 11350.

  Referring to FIG. 23CC, a method for operating a nuclear fission reactor fuel assembly 11360 begins at block 11370. At a block 11380, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11390, controlling fluid flow in a plurality of regions of the traveling wave fission reactor in proximity to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. In block 11400, the storage unit is used to seal and store a nuclear fuel body having a geometric shape of a cylinder. The method 11360 ends at block 11410.

  Referring to FIG. 23 CD, a method of operating a nuclear fission reactor fuel assembly 11420 begins at block 11430. At a block 11440, a storage unit for storing the exothermic fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11450, a fluid control subassembly connected to the containment is used to control fluid flow in multiple regions of the traveling wave fission reactor in proximity to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 11460, the containment is used to seal and store a nuclear fuel body having a polygonal geometric shape. The method 11420 ends at block 11470.

  Referring to FIG. 23CE, a method of operating a nuclear fission reactor fuel assembly 11480 begins at block 11490. In block 11500, a storage unit for storing the heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11510, using a fluid control subassembly connected to the containment to control fluid flow in multiple regions of the traveling wave fission reactor proximate to multiple locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At block 11520, the method includes actuating a valve. The method 11480 ends at block 11530.

  Referring to FIG. 23CF, a method of operating a nuclear fission reactor fuel assembly 11540 begins at block 11550. At a block 11560, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11570, the fluid control subassembly connected to the containment is used to control fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11580, fluid flow is controlled between the containment and the fluid control subassembly by actuating a valve between the containment and the fluid control subassembly. The method 11540 ends at block 11590.

  Referring to FIG. 23CG, a method 11600 of operating a nuclear fission reactor fuel assembly begins at block 11610. At a block 11620, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11630, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11640, fluid flow is controlled between the containment and the fluid control subassembly by actuating a valve between the containment and the fluid control subassembly. At a block 11650, fluid flow is controlled between the containment and the fluid control subassembly by actuating a backflow prevention valve. The method 11600 ends at block 11660.

  Referring to FIG. 23CH, a method for operating a nuclear fission reactor fuel assembly 11670 begins at block 11680. At a block 11690, a storage unit for storing a heating nuclear fuel body is used. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11700, using a fluid control subassembly connected to the containment to control fluid flow in regions of the traveling wave fission reactor proximate to locations corresponding to deflagration waves. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11710, a controllable brittle barrier is used. The method 11670 ends at block 11720.

  Referring to FIG. 23CI, a method for operating a nuclear fission reactor fuel assembly 11730 begins at block 11740. At a block 11750, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At block 11760, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the removal of at least some of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11770, a controllable brittle barrier is interposed between the containment and the fluid control subassembly. The method 11730 ends at block 11780.

  Referring to FIG. 23CJ, a method for operating a nuclear fission reactor fuel assembly 11790 begins at block 11800. At block 11810, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11820, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11830, a controllable brittle barrier is interposed between the containment and the fluid control subassembly. The method 11790 ends at block 11840.

  Referring to FIG. 23 CK, a method of operating a nuclear fission reactor fuel assembly 11850 begins at block 11860. At a block 11870, a storage unit is used to store a heating nuclear fuel body. The nuclear fuel body defines a plurality of interconnected open cell holes. At a block 11880, controlling fluid flow in a plurality of regions of the traveling wave fission reactor proximate to a plurality of locations corresponding to deflagration waves using a fluid control subassembly connected to the containment. Controls the process of removing at least a portion of the volatile fission products from the pores of the nuclear fuel body at a plurality of locations corresponding to the deflagration wave of the traveling wave fission reactor, and the heat generated by the nuclear fuel body. Control processing to remove at least a portion. At a block 11890, the method includes interposing a brittle barrier by manipulation by an operator. The method 11850 ends at block 11900.

  Those skilled in the art will appreciate that the components (eg, operation), devices, purposes, and the discussion that accompanies them described herein are used as examples for the purpose of making the idea easier to understand, and It will be appreciated that various configuration modifications are possible. Thus, as used herein, the specific examples and accompanying discussions described represent a more comprehensive class. In general, the use of any specific sample is representative of that class and should be interpreted in a limited manner even if specific components (eg, operation), devices, and purposes are not described. It shouldn't be.

  Also, those skilled in the art will recognize that the specific processes and / or devices and / or techniques described above as representative examples may be found elsewhere herein, such as the claims and / or claims filed herein. It will be appreciated that it represents a more comprehensive process and / or device and / or technique taught elsewhere in this application.

  While specific embodiments of the subject matter described herein have been illustrated and described, changes and modifications do not depart from the subject matter described herein and the broader aspects, and therefore, the appended claims are Those skilled in the art should understand, based on the teachings herein, that all changes and modifications are within the scope, and further within the true spirit and scope of the subject matter described herein. Those skilled in the art generally intend that the terms used herein, particularly those used in the appended claims (eg, in the appended claims text), are generally “open” terms. (For example, the term “including” should be construed as “including but not limited to”) Should be interpreted as "having at least ..." and the term "comprising ..." should be interpreted as "including but not limited to" ). Further, if a specific number of components introduced in a claim is intended, such intention is expressly stated in the claim, and such explicit description It will be understood by those skilled in the art that such intent does not exist in the absence of. As an aid to understanding, introductory expressions such as “at least one” or “one or more” may be used in the following appended claims to introduce claim elements. Absent. However, even if such an expression is used, the introduction of a claim component by the indefinite article “a” or “an” includes any component introduced in the claim. Should not be construed as implying that this particular claim is limited to claims containing only one such component. Similarly, such an interpretation may include the introductory expression “one or more” or “at least one” and an indefinite article, such as “a” or “an”, in the same claim. Again, this should not be done (eg, “a” and / or “an” should normally be taken to mean “at least one” or “one or more”). The same is true for the use of definite articles used to introduce claim elements. Further, even if the specific number of components introduced in the claims is explicitly stated, those skilled in the art usually include at least the stated number. It should be understood that it should be construed as meaning (for example, where “two components” is simply described without the use of a modifier, Means at least two or more). Further, when a similar expression format is used for “at least one of A, B, C, etc.”, generally such a sentence structure will be understood by those skilled in the art. Intended for meaning (eg, “a system having at least one of A, B, and C” includes a system having only A, a system having only B, a system having only C, and A and B). , A system having both A and C, a system having both B and C, and / or a system having both A, B, and C, etc.). Where a similar form of expression is used for “at least one of A, B, C, etc.”, such a sentence structure generally has the meaning that would be understood by those skilled in the art. Intended (eg, “a system having at least one of A, B, or C” includes a system having only A, a system having only B, a system having only C, and A and B together. A system having both A and C, a system having both B and C, and / or a system having both A, B, and C, etc.). Moreover, those of ordinary skill in the art typically use disjunctive words and / or expressions to present two or more optional terms either in the specification, in the claims, or in the drawings. As long as it is consistent with the context, it may contain one of the terms, one of the terms, or may contain both terms. It will be understood that it should be understood that it is considered. For example, the expression “A or B” is generally understood to include the possibility of being “A” or the possibility of being “B” or the possibility of being “A and B”.

  With respect to the appended claims, those skilled in the art will appreciate that the actions described in a claim may generally be performed in any order. Also, although the various operational flows are presented as a series of flows, it is understood that the various operations may be performed in other orders than the illustrated order, or may be performed simultaneously. It should be. Examples of such other sequences may include repetitive, alternating, interrupted, reordered, incremental, prepared, replenished, simultaneous, reverse, or other modified orders, as long as they are not inconsistent with the context. Good.

  While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. For example, the nuclear fission reactor fuel assembly of each embodiment may be disposed in a thermal neutron reactor, a fast neutron reactor, a neutron breeding reactor, or a fast neutron breeding reactor. Therefore, the fission reactor fuel assemblies of each embodiment have wide enough applications to be used advantageously in various nuclear reactor designs.

  Thus, what is provided is a fission reactor fuel assembly and system configured to control the process of removing volatile fission products and heat released by deflagration waves in a traveling wave fission reactor, And its method.

  In addition, various aspects and embodiments are disclosed herein, and it should be understood by those skilled in the art that other aspects and embodiments are possible. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting. The true scope and spirit of the invention is indicated by the following claims.

1 is a partial longitudinal sectional view of a fuel assembly and system for a nuclear fission reactor according to a first embodiment. 2 is a partially enlarged view of a porous nuclear fuel body defining a plurality of interconnected open cell holes. FIG. It is the elements on larger scale of the nuclear fuel body which has a plurality of particles and defines a plurality of channels between the particles. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for nuclear fission reactors of 2nd Embodiment. It is a fragmentary longitudinal cross-section of the fuel assembly and system for a nuclear fission reactor of a third embodiment. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for nuclear fission reactors of 4th Embodiment. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for a nuclear fission reactor of a fourth embodiment arranged in a plurality of sealed containers. It is a fragmentary longitudinal cross-sectional view of the diaphragm valve which has a brittle barrier as 1st Embodiment. It is a fragmentary longitudinal cross-sectional view of the diaphragm valve which has the barrier made into brittle by 2nd Embodiment as a piston structure. FIG. 9 is a partial longitudinal cross-sectional view of a plurality of sixth embodiment nuclear fission reactor fuel assemblies and systems with portions disposed outside the sealed vessel. FIG. 3 is a partial longitudinal cross-sectional view of a first supply element, a second supply element, and a fluid control subassembly that are operatively connected by a Y-pipe joint. FIG. 4 is a partial longitudinal cross-sectional view of an inlet subassembly and an outlet subassembly connected to a fluid control subassembly. FIG. 3 is a partial longitudinal sectional view of an inlet subassembly connected to a porous nuclear fuel body and an outlet subassembly connected to a fluid control subassembly. FIG. 2 is a partial longitudinal cross-sectional view of a plurality of inlet subassemblies connected to a porous nuclear fuel body, a plurality of pumps connected to each of the inlet subassemblies, and also shows an outlet subassembly connected to a fluid control subassembly. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for fission reactors of 7th Embodiment. It is a fragmentary longitudinal cross-section of the fuel assembly and system for a nuclear fission reactor of an eighth embodiment. It is a top view of the fuel assembly and system for a nuclear fission reactor of a ninth embodiment. FIG. 10 is a sectional view taken along line 10-10 in FIG. 9; It is a partial longitudinal cross-sectional view of the fuel assembly and system for fission reactors of 10th Embodiment. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for fission reactors of 11th Embodiment. It is a top view of the fuel assembly and system for a fission reactor of a twelfth embodiment. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. It is a partial front view of the fuel assembly and system for fission reactors of 13th Embodiment. FIG. 16 is a cross-sectional view taken along line 16-16 in FIG. 15. It is a top view of the fuel assembly and system for a nuclear fission reactor of a fourteenth embodiment. FIG. 18 is a sectional view taken along line 18-18 in FIG. 17. It is a fragmentary longitudinal cross-sectional view of the fuel assembly and system for fission reactors of 15th Embodiment. It is a fragmentary longitudinal cross-section of the fuel assembly and system for a nuclear fission reactor of a sixteenth embodiment. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 3 is a flowchart illustrating a method of assembling a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 6 is a flowchart illustrating a method of removing volatile fission products at a plurality of positions corresponding to deflagration waves. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method. 2 is a flowchart illustrating a method of operating a fission reactor fuel assembly configured to control removal of volatile fission products and heat release by deflagration waves in a traveling wave fission reactor and method.

Claims (44)

Configured to control the process of removing volatile fission products emitted by the presence of deflagration waves in a traveling wave fission reactor,
A containment unit configured to contain a porous nuclear fuel body defining a plurality of pores having the volatile fission products;
A fluid control subassembly connected to the containment and configured to control a process of removing at least a portion of the volatile fission products from the porous nuclear fuel body.   The system of claim 1, further comprising a control unit configured to control operation of the fluid control subassembly.   The system of claim 2, wherein the control unit is configured to control the release of the volatile fission products in response to a traveling wave fission reactor power level.   The system of claim 2, wherein the control unit is configured to control the release of the volatile fission product in response to a neutron number level in a traveling wave fission reactor.   The system of claim 2, wherein the control unit is configured to control the release of the volatile fission product in response to a pressure level of the volatile fission product of the traveling wave fission reactor.   The system of claim 2, wherein the control unit is responsive to a schedule for a traveling wave fission reactor, wherein the release of the volatile fission products is controlled.   The system of claim 2, wherein the control unit is configured to control the release of the volatile fission product in response to the time the traveling wave fission reactor is operating.   The system of claim 2, wherein the control unit controls the release of the volatile fission products in response to the position of a deflagration wave in a traveling wave fission reactor.   The system according to claim 1, wherein the storage unit stores the porous nuclear fuel body.   The system according to claim 1, wherein the storage unit stores a fissile material forming the porous nuclear fuel body.   The system according to claim 1, wherein the storage unit stores a nuclear raw material forming the porous nuclear fuel body.   The system according to claim 1, wherein the storage unit stores a mixture of a fissile material and a nuclear material forming the porous nuclear fuel body.   The system of claim 1, wherein the containment is controlled to release the volatile fission product in response to a power level of a traveling wave fission reactor.   The system of claim 1, wherein the containment is controlled to release the volatile fission products in response to a neutron number level in a traveling wave fission reactor.   The system of claim 1, wherein the containment is controlled to release the volatile fission product in response to a pressure level of a volatile fission product in a traveling wave fission reactor.   The system of claim 1, wherein the containment is controlled to release the volatile fission product in response to a schedule for a traveling wave fission reactor.   The system of claim 1, wherein the containment is controlled to release the volatile fission product in response to a time during which the traveling wave fission reactor continues to operate.   The system of claim 1, wherein the storage stores a porous nuclear fuel body defining a plurality of channels.   The system of claim 18, wherein the storage unit stores a porous nuclear fuel body having a plurality of particles and defining a plurality of channels between the particles. The storage unit stores a porous nuclear fuel body having a plurality of holes,
At least some of the holes are of a predetermined structure to allow at least some of the volatile fission products to escape from the holes in the nuclear fuel body within a predetermined response time. The described system.   The containment is porous with a plurality of pores to allow at least a portion of the volatile fission products to escape within a predetermined response time between about 10 seconds and about 1,000 seconds. The system of claim 1, wherein the nuclear fuel body is stored.   The containment is porous with a plurality of pores to allow at least a portion of the volatile fission products to escape within a predetermined response time between about 1 second and about 10,000 seconds. The system of claim 1, wherein the nuclear fuel body is stored.   The system according to claim 1, wherein the storage unit hermetically stores a porous nuclear fuel body whose geometric shape is a cylinder.   The system according to claim 1, wherein the storage unit hermetically stores a porous nuclear fuel body having a polygonal geometric shape.   The system of claim 1, wherein the containment unit stores a porous nuclear fuel body having a plurality of holes for capturing volatile fission products released by deflagration waves of a traveling wave fission reactor.   The system of claim 1, wherein the containment unit stores a porous nuclear fuel body having a plurality of holes for transporting volatile fission products through the porous nuclear fuel body.   The system of claim 1, further comprising a reservoir connected to the fluid control subassembly and receiving the volatile fission product.   The fluid control subassembly is configured to circulate a fission product removal fluid through the pores of the porous nuclear fuel body so that the fluid control subassembly is capable of removing the fission product removal fluid. The system of claim 1, wherein at least a portion of the volatile fission products are removed from the pores of the nuclear fuel body while circulating through the pores of the porous nuclear fuel body.   29. The system of claim 28, wherein the fluid control subassembly comprises an inlet subassembly for supplying the fission product removal fluid to the porous nuclear fuel body.   30. The system of claim 28, wherein the fluid control subassembly comprises an outlet subassembly for removing the fission product removal fluid from the porous nuclear fuel body.   29. The system of claim 28, further comprising a reservoir connected to the fluid control subassembly and receiving the fission product removal fluid.   29. The system of claim 28, further comprising a reservoir connected to the fluid control subassembly and supplying a fission product removal fluid.   The system of claim 1, wherein the fluid control subassembly is configured to circulate gas through a hole in a porous nuclear fuel body.   The system of claim 1, wherein the fluid control subassembly is configured to circulate liquid through a hole in a porous nuclear fuel body.   The system of claim 1, further comprising a pump integrally connected to the fluid control subassembly and circulating fluid between the fluid control subassembly and the porous nuclear fuel body.   The fuel assembly for a nuclear fission reactor according to claim 1, wherein the fluid control subassembly comprises a pump.   The system of claim 1, wherein the fluid control subassembly comprises a valve.   38. The system of claim 37, wherein the valve comprises a backflow prevention valve.   The system of claim 1, further comprising a valve interposed between the containment and the fluid control subassembly to control fluid flow between the containment and the fluid control subassembly.   40. The system of claim 39, wherein the valve comprises a backflow prevention valve.   The system of claim 1, wherein the fluid control subassembly comprises a controllable brittle barrier.   42. The system of claim 41, wherein the brittle barrier breaks at a predetermined pressure.   42. The system of claim 41, wherein the brittle barrier breaks upon manipulation by an operator. The system of claim 1, further comprising a controllable brittle barrier interposed between the containment and the fluid control subassembly.

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